The current I, in amperes, flowing through an AC (alternating current) circuit at time t is I(t)=240sin(30t2), where t0. Find the period and the horizontal shift. a) Period: 301, shift 301 to the right. b) Period: 301, shift 301 to the left. c) Period: 151, shift 1201 to the right. d) Period: 151, shift 601 to the right. e) Period: 151, shift 601 to the left. f) None of the above