Jim, Bob, and Scott are all on the same soccer team. Jim's jersey number is 7, Bob's jersey number is 10, and Scott's jersey number is 3. Is this relation a function? Explain.

This relation is not a function. Each name in the domain corresponds to exactly two elements in the range of jersey numbers.
This relation is a function. Each name in the domain corresponds to exactly one element in the range of jersey numbers.
This relation is not a function. Each name in the domain corresponds to exactly one element in the range of jersey numbers.
This relation is a function. Each name in the domain corresponds to exactly two elements in the range
of jersey numbers.

This relation is a function. Each name in the domain (Jim, Bob, Scott) corresponds to exactly one element in the range of jersey numbers (7, 10, 3).