If # = +, @ = x, % = -, then (5 # 2) @ 3% 4 = ?A20B17C18D21Answer: B. 17 Read Explanation: Given:# = +@ = ×% = −Expression:[(5 # 2) @ 3 % 4]Step 1: Replace symbols[(5 + 2) \times 3 - 4]Step 2: Solve brackets[7 \times 3 - 4]Step 3: Multiply[21 - 4]Step 4: Subtract[17]✅ Final Answer:[\boxed{17}] Read more in App