Three raised to the square of a number, x, is equal to nine raised to the power two times the same number x decreased by one. please help! i will mark brainliest

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.