General purpose registers

Translation look aside buffer

Program counter

All of these

It cannot have subroutine call instruction

It can have subroutine call instruction, but no nested subroutine calls

Nested subroutine calls are possible, but interrupts are not

All sequences of subroutine calls and also interrupts are possible

Overlow

Zero result

Negative result

None of the above

8 bits

12 bits

16 bits

32 bits