A set of simple string manipulation functions are employed in _______a.<stdio.h>b.<conio.h>c.<string.h>d.<math.h>

Break Down the Problem

1. Understand what the question is asking: Identify which header file in C contains simple string manipulation functions.
2. Analyze the options provided: stdio.h, conio.h, string.h, and math.h.

Relevant Concepts

• In C programming, header files are used to include standard libraries and function declarations.
• string.h is specifically designed to handle string operations such as copying, concatenation, comparison, and length calculation.

Analysis and Detail

1. Option a: <stdio.h>: This header file is primarily for input and output functions such as printf and scanf.
2. Option b: <conio.h>: This is a non-standard header (mostly used in older compilers) for console input/output functions, but not for string manipulation.
3. Option c: <string.h>: This header file contains all standard string manipulation functions like strlen, strcpy, strcat, etc.
4. Option d: <math.h>: This header file is for mathematical functions and does not include any string manipulation functions.

Verify and Summarize

After analyzing all the given options, it is clear that the only header file dedicated to string manipulation functions is string.h.

Final Answer

The correct answer is c. <string.h>.