Emergency! which expression is equivalent to 2(a+3) when a=3? a. 2(3) b. 5(3) c. 2(3)+3 d. 2(3)+6

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.