Question $2$

Let $A=\{1,2\},B=\{g,r,a,y\},$ and $f$:$AB$ is the function defined by $f=\{(1,g),(2,g)\}.$

Determine the domain, codomain, and ramge of $f.$

The domain and codomain are both A$,$ and the range is B$.$

The domain is A$,$ codomain is B$,$ and the range is $\{g\}$

The domain is $B,$ the codomain is $A,$ and the range is $\{g\}.$

The domain is $A,$ the codomain is $\{g\},$ and the range is B$.$