Final answer:
The retail price of the jacket before the coupon was applied is $218, making option d the correct answer.
Step-by-step explanation:
The question is asking for the calculation of the retail price of a jacket after applying a coupon. The discounted price of the jacket is $203 with a $15 coupon, which suggests that the price of the jacket before the coupon was applied is $203 + $15 = $218. Therefore, the retail price of the jacket before discounts and coupons is $218. Option d is the correct answer.