Assume s is " abc ", the method __________ returns a new string "abc".

Which of the following strings is a palindrome?

a) “bottle” b) “beep” c) “coco” d) “r”

A function can return a value of type T in one of several different ways. Which of these is correct? If correct, give a short declaration of a function that returns its value by these mechanism. Comment on the const methods of function return value. Comment on when there is danger involved in returning a reference of any kind from a function. Finally, which one of these returns an l-value and which an r-value?

a. By value b. By lazy evaluation. c. By reference d. By const value e. By const reference