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 dry your hair [title] Pat your hair dry with a towel. [step] If you can, try to use a microfiber towel. Microfiber towels are soft and gentle on all hair types. <sep> (A) Avoid using dull towels, since they make hair really dry quickly. [substeps] If you're in a hurry, dampen a microfiber towel with some water and wring it out. (B) You don't need to rub the towel over your hair, just pat it dry. [title] Choose a hair shade that reflects well. (C) They are less likely to snag, rip, or tear your hair than regular towels. Microfiber towels can also help reduce frizz. (D) Make sure to pat the towel dry gently and without abrading your hair. After drying, use the apple cider vinegar spray to gently splash your hair with cool water.
C

[header] How to bathe a pregnant guinea pig [title] Select a shampoo. [step] There are all types of shampoos for pets. For your guinea pig, make sure the shampoo is made specifically for small animals (it should say so on the bottle). <sep> (A) Otc shampoos and chemical shampoos are good choices. Avoid shampoo labeled specifically for guinea pigs and those formulated for females. (B) This way, both animals can use the shampoo and their fur will be clean. While many shampoos claim to free your guinea pig from " reye's syndrome ", this actually isn't true. (C) [substeps] Make sure that it is specially formulated for pregnancy-therefore not designed for your guinea pig. You can get shampoo from the veterinarian. (D) A small animal-specific shampoo will keep your guinea pig's skin from drying out or becoming irritated. Since your guinea pig is pregnant, the shampoo should also be non-medicated to prevent ingredients absorbing through her skin that could harm her unborn babies.
D

[header] How to fit car mats [title] Choose a fit style. [step] Most people opt for standard fit car mats, but if you're a bit more particular about what goes into your car, there are more advanced options to pick from, too. [substeps] Standard fit mats are the least expensive and will usually work with any car that hasn't been customized. <sep> (A) Look for a box specifically designed for your car, like through an environmental design school, so that you have the best chance of personalizing and protecting your car. [title] Make sure your car has a spring-loaded spring loaded tire. (B) Think about which type of guide you need to turn in to your car to replace your own guide. If you're only going on an occasional bike ride, think about getting a durable car mats that are both well padded and functional. (C) You should be able to find them in any store that sells automobile accessories. Some standard fit mats are universal by car type (subcompact car, compact car, minivan, suv, pickup truck, etc. (D) However, they are not meant for everyday uses or though they can still be worn during sports events. [title] Consider the size and shape of the automobile you will be using.

C