Select the correct answerWhich header file is required for dynamic memory allocation functions in C?Optionsstdio.hstdlib.hstring.hmalloc.h

Which header file is essential for using strcmp() function?Optionsstring.hstrings.htext.hstrcmp.h

Select the correct answerThe size_t data type is commonly used as the return type for which library function in C?Optionsscanf()printf()malloc()getchar()

scanf() is a predefined function in______header file.*1 pointstdlib. hctype. hstdio. hdstdarg. h

What is the following is invalid header file in C?*

Marks the statements below about header files, as True/False.Read the spellings carefullyTrue False The stdio.h contains#ifndef _STDIO_H#define _STDIO_H    1as the first two lines,It is done to prevent  multiple inclusions of the same header files. #include <stdio.h>means copy paste the header file stdio.h in the place of the above line It's a common practice to move code of some of the functions to header files, and then #include those files, whenever needed. stdio.h contains the code for scanf(), printf() and getchar(). #include "my.h"means copy the file my.h from /usr/include, and paste it in the program, in place of the above line. The typical location for header files on Linuxes is /user/includes/headers/ Header files typically contain pre-processor directives, typedefs, and function prototypes only