For the following problems, demonstrate that the functions are in the Big-Omega given using f(n) C * g(N) for all n N. Make sure answers are in positive integer values. A. Show that f(n) = 64 is in 2(1). Pick any integer C > 0 (make sure it is sufficiently small). B. Show that f(n) = 5n2 + 128n is in 2(n2). Use C = 5. C. Show that f(n) = 15n2 + 7 is in 2(1). Use C = 157.