Give the direct answer ABCD is enough

The effective address (EA) for different types of displacement addressing modes is given as EA = A + (R), where A is the instruction's address field, and Ris a register. Which of the following is NOT a possible source of R? O A Index Register B. Accumulator Base Register D. Program Counter (PC) Clear my choice What the the possible outputs to F1 and/or F2 in the following Programmable Logic Array (PLA)? X Y z F F2 LF1 = XYZ + XYZ IL F2 = XYZ III. F1 = invalid IV. F2 = invalid I. and il only III and IV only. Il only I only. What is the best result after simplifying the following function using Boolean algebra? F = ABC + ABC + ABC = F = A(B + ) F = A(B+C) + F = A(B + 5) F = A(BC + BC + BC)