(a) In the case of C programming, how does pointer arithmetic behave? Illustrate with an example. (b) How do recursion and iteration exhibit…

(a) In the case of C programming, how does pointer arithmetic behave? Illustrate with an example.

(b) How do recursion and iteration exhibit different impacts in terms of stack usage and memory overhead? Explain with examples.

(c) Write a recursive C function to find out GCD of two integers. Using that function, explain steps of finding GCD of (96, 36).

(d) Explain differences between structure and union with examples.