Give the starting value a, the growth factor b, and the growth rate r if Q = abt = a(1 + r)t . Write r as a percent. Q = 34.3 (0.788) Superscript t a. a = 29.94 b = 0.788 r = 78.8% c. a = 34.3 b = 0.788 r = 21.2% b. a = 29.94 b = 0.212 r = 78.8% d. a = 34.3 b = 0.212 r = 11.2% Please select the best answer from the choices provided A B C D