3: Practice Problems You are given the following C code to compute integer absolute value: int abs( int x) {{returnx>(sizeof( int )81); int comp =x mask; return comp; \} A. What bit pattern does mask have, as a function of x ? B. What numerical value does mask have, as a function of x ? C. For what values of x do functions abs and opt abs return identical results? D. For the cases where they produce different results, how are the two results related? E. Show that with the addition of just one single arithmetic operation (any C operation is allowed) that you can fix opt abs. Show your modifications on the original code. (You can just provide the line that you will add). F. Are there any values of x such that abs return a value that is not greater than 0 ? Which value(s)