Q2: In a competition, four different functions are observed. All the functions use a single for loop and within the "for loop", same set of statements are executed. Consider the following for loops: A) for(i = 0; i < n; i++) B) for(i = 0; i < n; i=i+2) C) for(i = 1; i < n; i=i*2) D) for(i = n; i > -1; i=i/2) %3D If n is the size of input (positive), which function is most efficient (if the task to be performed is not an issue)?