Question

Which instruction of the following makes the execution back to the invoking program?

• A. forward
• B. return
• C. data
• D. line

Hint:

CALL → go to subroutine, RET → come back.

Answer 1

The Correct Option is B

Concept: Subroutine handling involves call and return instructions.

Step 1: Subroutine call Program jumps to a subroutine using CALL instruction.

Step 2: Return mechanism Return instruction restores execution to main program.

Step 3: Stack role Return address is stored in stack.

Step 4: Execution flow RET pops address and resumes execution.

Step 5: Conclusion \[ \boxed{\text{return}} \]

Final Answer: \[ \boxed{(B)} \]