Here's a question: Sally liked hair, and wanted to rub some every single day. However, she has no skill at cutting hair at all, and no interest in doing so.  What might she get to let her rub hair?

Here are possible answers to this question:
- sink
- moustache
- oils
- mammals
- barber shop

I believe the correct choice is "mammals", here's why:


animals constituting the class mammalia