For which values of a, b, and c will the population of the bacterial colony described by the equation B'(t) = eat-b-ct be the greatest at t = 3? The initial population of the bacterial colony is B(0) = 2, where units are in thousands of cells. O a) o b) c) a = 0.56, b=0.73, c = 0.2 a = 0.42, b = 0.31, c = 0.45 a = 0.44, b = 0.12, c= 0.24 a = 0.57, b=0.73, c = 0.28