give me only anwser

[1] Which instruction among the following need more than four timing signals to be executed? a) CLA b) LDA c) CIR d) INP [2] Which register among the following need to use the common bus to transfer its content to AC register? a) AC b) INPR c) DR d) TR [3] Which symbolic micro-operation among the following changes the content of AC ? a) COM b) READ c) ACTDR d) DRTAR [4] Which BR condition would always transfer the execution to the beginning of a new routine? a) JMP b) CALL c) RET d) MAP [5] Which microinstruction is expected to be the last one in the INDRCT subroutine? a) DRTAR U MAP b) DRTAR U RET c) NOP I CALL INDRCT d) NOP S JMP OVER