Question 9 9 pts For this problem, there are 4 variables. X3 is the most significant bit (leftmost) and xo is the least significant (rightmost). This means that m12 is X3X21 TO. Elements that are don't cares are written as dinder . For example, d12 would mean that we don't care what the output is when x3 = 1, 1,X1 = 0, and X0 = 0. X2 = Select the equation that represents the simplest SOP form of Eldo, d2, m4, M6, d7, dg, d10, M12, M14, M15) . Again simplest SOP! 22 * (x1 + 10) 220 + X3X2X1 OTO + X2X1 (x3 + x2) * (T3 + x2) * (202 + x1 + o) JE TO + X1 TO + X2X120 (21 + o ) * (22 +20)