Correct Answer (Detailed Explanation is Below)
B.
16
Detailed Explanation
In
postfix notation, the operator is written after its operands. For 5 3 + 2 *, first push 5 and 3, then apply + to obtain 8. Next, push 2 and apply * to obtain 16. Therefore, the final result is
16. Postfix expressions are commonly evaluated using a
stack. When an operand is encountered, it is pushed onto the stack; when an operator appears, the required operands are popped, the operation is performed, and the result is pushed back.