The answer is D use indexing to establish Carlos's location
the way to sign this phrase would be to finger-spell C-A-R-L-O-S, sign best friend, pilot, index toward where he has been established, and then fingerspell N-E-W Y-O-R-K.
Depends, what did they sound like, high-mid- or low, think of a dad or a teen voice and what they are saying and as if they get along well or not
