In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

[header] How to read a screw thread callout [title] Read the numbers. [step] They will look something like one of these : [substeps] 4-40 x. 5 1/4-20 x 5/8 m3-0.50 x 10 [title] Interpret the first number. [step] The first number gives the major, or largest, diameter. <sep> (A) Next, determine the size of the screw thread you wish to use. Write these numbers down on several pieces of paper and trace around them. (B) It also tells you the larger diameter of a screw thread to create a series of polygons which share a small degree of overlap by a single number. [title] Separate the single digits in each string from each string. (C) [substeps] In unified threads (measured in inches) there are numbered diameters 0 through 10, with 0 the smallest and 10 the largest. ( diameters 12 and 14 may also be found, but are usually on older equipment and needed for repairs or restorations. (D) However, an " x " will bring more light up on an empty needle, so use a tray or ice scraper to fill it to feel the thickness of the screw. The next number tells us that the machine is a small amount bigger or larger than what we used it for.
C

[header] How to be creative with landscaping [title] Construct a playground for children. [step] Do not purchase expensive sets of see-saws, slides or swings. You can actually create a playground for children with just a few easy tweaks. <sep> (A) Explain to the children that you own a playground. If you have an old playground for young children, it may be easier for them to understand. (B) You can make use of old chairs or tires and turn them into swings. You just have to make sure that you use sturdy ropes as well as tie them appropriately to a tree for safety. (C) [substeps] Most likely, you would have made the playground yourself, but if you use it, you will need to provide very clear, patient instruction. On the playground's exterior, get creative and use the distinctive textures listed above. (D) [title] Consult with your local park or garden center to see if they can create their own playground. [step] Make sure that they can match the basics of an playground.
B

[header] How to reuse broken stemware as garden candle holders [title] Find suitable broken glasses. [step] The idea for this project is to use glasses which have broken stems or bases only and that still have intact bowls. Do not use glasses with jagged cut tops or broken shards. <sep> (A) Whatever you choose, do keep in mind that use does not mean discard from the glass or put them in the trash. [title] Use cut blooms or flowers as a candle holders holder. (B) While you don't need the glass to be in perfect condition, it does need to be free of cracks and other vulnerable areas that could make it prone to further damage. Also ensure that you choose the right stemware. (C) If you have trouble finding glasses which have broken stems, you may need a cocktail shaker. It's best not to use glasses which are fragile or may break if you cut the stems or bases off of the glass. (D) [title] Using a long cylindrical cup or spoon, gently scoop out any glass particles that remain. [step] Once the shards are completely loose, push those bits gently into the crevices in the glass.

B

