(a) Write down a function in C Programming language, that will take an n×n matrix as parameter and the dimension n as another parameter, then…

(a) Write down a function in C Programming language, that will take an n×n matrix as parameter and the dimension n as another parameter, then compute the sum of main diagonal elements of the matrix.

(b) Difference between Heap Sort and Merge Sort.

(c) Explain the difference between Stateless and Stateful protocols. Which type of protocol http is?