plz explain your working as if you were talking to someone who knows nothing about computers thanks

5. The following two lines are quoted from an assembly program in listing format for M68000 processor. Before line 7 is executed, the value in the PC of the microprocessor is A, and the content of DO is 2. After instruction line 7 is executed, what values are left in PC, MAR, MBR, and DO? Note that the increment of PC is 2. ... 0000000A 5240 7 ADDI #1, DO 0000000C 3080 8 MOVE.W DO, (AO) a. b. C. d. PC=C, MAR=A, MBR=0x5240, DO=%0011 PC=C, MAR=A, MBR=0x3080, DO=%0011 PC=C, MAR=0x5240, MBR=A, DO=%0001 PC=A, MAR=C, MBR=0x5240, DO=%0011 PC=C, MAR=0x5240, MBR=A, DO=%0011 e