Let and beta be the roots of x-x-1= 0, with > beta. For all positive integers n, define n a" - B a-B an = correct? A. C. b n=110n " 8 89 n1, b = 1 and bn = an- 1 +an+1, n 2. Then which of the following options is/are a + a + a3 + +anan+2-1 for all n 1 ..... B. D. b = a +" for all n 1 n=1 an 10 = 10 89