You have the following code snippet: int a[5]; a[0] = 0; a[1] = 1; a[2] = 2; a[3] = 3; a[4] = 4; a[5] = 5; // Using a further in the program ... How can you improve (or shorten) it? a. Use a loop. b. Nothing to improve. It already looks good. c. Declare another array and assign values there. d. Use one or more if-conditions