What is the difference between get() and at() in C++?

A) at() is a member function of array class whereas get() is not

B) get() takes array class as a parameter whereas at() takes a constant integer(i.e. index) as a parameter

C) at() is available under <array> header file whereas get() is available under <tuple> header file

D) All of the above

Correct Answer : All of the above

Explanation : get() and at() differ in various ways. get() is not a part of array class, get is available under <tuple> header and get() takes array class also as a parameter to access the element.