92, 2. Consider the DFA M = (Q, E,8,91, F) where Q = {91, 92, 93, 94}, { = {a,b}, F = {qu} and 8(91, a) 8(42,6) 8(43, a) 8(93,6) 93, 94, = 91. Convert this DFA to a regular expression. You only need to calculate sub-expressions if it is necessary. Also, simplify each subexpression using any of the following laws: 1) ( + R)* = R*, 2) S R* = R* if L(S) CL(R*) and E S, and 3) S + R = R if L(S) C L(R)