C Programming
What will be the output of the program ?#include#includevoid main(){ char str1[20] = "Hello", str2[20] = " World"; printf("%s", strcpy(str2, strcat(str1, str2)));}

Hello
WorldHello
None of these
World
Hello World

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C Programming
Use of functions

All of these
Helps to avoid repeating a set of statements many times.
Helps to avoid repeated programming across programs.
Makes the debugging task easier.
Enhances the logical clarity of the program.

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