Question 2 (20 marks) (a) Explain the following terms as used in a C-Program, providing examples to justify your answer. (1) Variable (ii) Data type (ii)Pre-processor directive (9 marks) (b) Consider the following program: 1. #include 2. #include 3. 4. void fool (int a, int b) { 5. static int e = 5; 6. if (a>b) 7. C=c+a; 8. else 9. C-C+b 10. return ci 11. 1 12. 13. int main(void) 14. for (i=0i