Evaluate the expression: 4 + (18 ÷ 3) × 2 - 1

✓ Correct Answer: Option A

Follow PEMDAS: Parentheses first (18 ÷ 3 = 6). Then multiplication (6 × 2 = 12). Then addition (4 + 12 = 16). Finally, subtraction (16 - 1 = 15).