Let d be the domain and let ƒ be the possible function. determine if the relation is an example of a function.

d = {x| x is a date, expressed in day/month/year}
ƒ(x) = temperature in seattle washington on that date

a: yes. one input results in one output.

b: yes. one output results in one input.

c: no. at least one output results in more than one input.

d: no. at least one input results in more than one output.