Need some help with this, thank youThis is part 2

Use the algorithm for finding A to find the inverses of the matrices shown to the right. Let A be the corresponding n xn matrix, and let B be its inverse. Guess the form of B, and then show that AB = 1. 1000 100 20 2 200 and 3 3 3 0 3 3 4 4 44 For j = 1,2,...,n, let aj, bj, and e, denote the jth columns of A, B, and I, respectively. First let j = 1,2,...,n - 1 and evaluate Abj Ab = Distribute to remove the brackets. Abj = Rewrite a; and a; + 1 in terms of the columns of I. Abj = Simplify this expression. Ab; Because the result from the previous step is equal to it follows that AB = I for j = 1,2,..,n - 1. Which of the following shows that AB = I for j =n, completing the proof? O A. OB. Abn = A (nen ) Abn = A + Ten + 1) =en 1 jan + 1 n + 1 = en OD. O .C. Ab = A men Ab = A _ Ten- 1) n - 1 n - 1 n zen zen