QUESTION $23$

To store a value in a vector that does not have a starting size, or that is already full, use the member function.

A$.$ pop$\_$back$()$

B$.$ put$\_$in$()$

C$.$ push$\_$back$()$

D$.$ add$\_$to$()$

QUESTION $24$

o determine the number of elements in a vector, use the member function.

A$.$ size$()$

B$.$ len$()$

C$.$ sizeof$()$

D$.$ numElements$()$

QUESTION $25$

Use the member function to remove the last element from a vector.

A$.$ clear$()$

B$.$ pop$\_$back$()$

C$.$ removeLast$()$

D$.$ drop$\_$back$()$