Demonstrate the theta-complexity of the functions below. In order to demonstrate that f(n) = theta (g(n)) you must find 4 positive constants C_1, C_2, x_1, and x_2, such that C_1*g(n) greaterthanorequalto f(n) for all n greaterthanorequalto x_1 C_2*g(n) lessthanorequalto f(n) for all n greaterthanorequalto x_2 In each of your answers, you should list values for these 4 constants for the given function f. a. f(n) = 5 b. f(n) = n^3 - 3*n^2 + 5 c. f(n) = 2*log_2 (n) - 4 d. f(n) = n + log_2(n) + 2