Why are the terms female and male used on birth certificates?

A. Because they refer to a learned trait
B. Because they refer to something that is biological
C. Because they are modern terms
D. Because they are common terms

Question

Why are the terms female and male used on birth certificates?

 		A.	Because they refer to a learned trait
 		B.	Because they refer to something that is biological
 		C.	Because they are modern terms
 		D.	Because they are common terms

jacob902 · Answer

@Cresciez

cresciez · Answer

I think B, but give me a sec to research it

jacob902 · Answer

k i was thinking the same

cresciez · Answer

I'm pretty sure it's B, that's all I can get. D: 
It can't be modern or common terms, because I believe that would refer to "guy" or "girl." And it isn't a learned trait.

cresciez · Answer

So now that those are eliminated, it resorts to B. Give it a go ^.^