Concept:Use BODMAS rule: first calculate all multiplications, then perform addition and subtraction in order.Alternatively, compare unit digits of the options to quickly identify the correct answer.Explanation:Compute each product separately.55×65=357567×73=489184×86=722499×101=9999Now substitute these values into the given expression.3575+4891+7224−9999First add the three positive products: 3575+4891+7224=15690Then subtract: 15690−9999=5691So the value of ? is 5691.Checking unit digits: 5×5+7×3+4×6−9×1 gives a unit digit of 1, which confirms the answer.Answer:?=5691, i.e., option D.