Given the task definition and input, reply with output. 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 identify hickory nuts [title] Look for a woody outer shell, or husk. [step] Hickory nut husks are light green throughout the younger stages of development, then change to a dark brown upon maturity, before falling from the hickory tree. . <sep> (A) [substeps] The texture of a hickory nutshell may be smooth, with minimal veining, or considerably irregular and furrowed. Husks split open at the base once the fruit (nut) inside has fully ripened, although some species partially encapsulate the hickory nut even after splitting. (B) In older hickory nuts, there will be kernel divisions and clusters of four colored canning nuts. For younger hickory nuts, look for bulbous outer shells. (C) Walnut shell husks tend to grow from a " fractured " appearance, sharp, charred bark. The husks are hollow during mature hickory if they are mature and fully mature, and are filled with the bark, stems, and mucus. (D) There are two forms of hickory nuts : [substeps] Broil hickory nut husk husk by poking a skewer into the flesh and waiting to see if it burns on one end or another. This may be a good thing to do, as it does not burn as quickly and may not be as brittle like other hickory nuts.

A