Which are the following statements are legal? Assume that i has type int and has type double. a) 1=foo (10, 20, 30); b) x = foo (10, 20, 30); c) i = foo (5.25, 3.45, 7.22); d) x = foo (5.25, 3.45, 7.22); e) foo (10, 20, 30) ) foo (10, 20)