Question

Assuming that GradeBook.h is found in the current directory and the iostream header file is found in the C++ Standard Library header file directory, which of the following preprocessor directives will fail to find its desired header file?

Answer
a. #include "GradeBook.h"
b. #include
c. #include "iostream"
d. #include

Answer 1

#include

Step-by-step explanation:

iostream is basically a header file which is included by the #include preprocessor directive and jostream contains the input output functions.

GradeBook is a class and #include preprocessor directive is used to include definition of class GradeBook

So #include will fail to find its desired header file.