Respuesta :
Answer with explanation:
A mapping is said to be function, If no two same elements in preimage have distinct Image.
Here, The Situation is
Resident Ages →→→→→Zip Codes
It means People who are dwelling in the same colony , has same age ,and same Zip code, which is not possible.
But,So this scenario does not represent a function.
Option A:
No, because people who are the same age can have different zip codes