Which relation is a function? O A. {(-5, 4), (3, -2), (-2, 0), (8, -2)}
B. {(4, 6), (-1, -3), (4, -2), (3,5)}
C. {(6, 1), (3, 4), (5, 3), (6, 2)}
D. {(-4,-4), (2, -4), (7,3), (7, -1)}

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)