Options: (I). If you're taking a temperature with an oral thermometer, look for thermometers designed for most countries. They are designed for indoor people or people taking a temperature in a temperate setting.. (II). You can find digital thermometers in the drugstore. If you have an old glass thermometer, dispose of it instead of using it to take a temperature.. (III). Nearly all digital thermometers will work according to the instruction manual, provided you know how to use them. You should also buy an oral thermometer.. (IV). Most digital digital thermometers have a retainer insert to help you hold your armpit exactly where you want the thermometer to be. There are many different thermometers available that are designed to be taken together, so choose one you like..Choose from options above and answer: What most naturally follows?

How to take a temperature 
Use a multi-use or oral digital thermometer. 
Some digital thermometers are designed to be used either rectally, orally or in the armpit, while others are designed to be used specifically in the mouth. Either type of thermometer will give an accurate reading.
Answer:
(II).