A: Write a C function hwkla, that takes a long int x as argument as well as two integers n and m, and returns a long int. Here is the function declaration: long int hwkla (long int x, int n, int m); The function should swap byte n and m of a long int x (64-bit integer). A byte is an eight-bit aggregation. For this problem the index of the least significant byte is 0, and the index of the most significant byte 7 (so 0 , -), loops, switches, function calls, macros, conditionals (if or ?:) You are allowed to use all bit level and logic operations, left and right shifts addition and subtraction, equality and inequality tests, integer constants (