Write a C program for sort function for merge sort algorithm and

$($a$)$ Determine the cyclomatic complexity of the sort function.

$($b$)$ Design a test suite for the function sort that satisfies the following white$-$box testing strategies

$($Show the important steps in your test suite design$).$

$1.$ Statement coverage

$2.$ Branch coverage

$3.$ Condition coverage

$3.$ Path coverage