Which of the followings is a solution to the recurrence relation a.--12*an-1 - 36*an-2 with the initial conditions ao = 1 and a = 12? Select one: a. an69 + n2069 O b.an = (-6) - 3*n2"(-6)" O c. an = 6 +n*6 O d.an= (-6)" - 3*n*(-6)