20. what is the final result in the accumulator following the execution ofthe following program segment? MOV A, #52H ADD A, #39H DAA A. 8BH Check for correct choices B. 91H C. 81H D. 7BH 21. What is the final result in Port 2 after the execution of the following program segment? MOV A, #91H ORL A, #1AH MOV P2, A A. 91H B. 1AH 9BH D. 11H program segment? ly 22. What is the final result in Port 1 after the execution of the following MOV A, #55H XRL A, #0AAH OV P1, A FFH B. 55H C. AAH D. 00H