Question

Functions can be declared to return a reference type. There are reasons to make such a declaration/Which of the following reasons are correct?

The information being returned is a large enough object that returning a reference is more efficient than returning a copy.
The type of the function must be a R-value.
A. Only 1 is correct.
B. Only 2 is correct.
C. Both 1 and 2 are correct.
D. Both 1 and 2 are incorrect.

Answer 1

C

Answer 2

thanks