Which situation represents a proportional relationship? a) the number of pounds of sugar in s sacks with 25 pounds of sugar in each of the sacks. b) the weight in w weeks of a kitten that gains 2 ounces per week if its starting weight is 3.5 ounces. c) the cost of purchasing p pounds of rib eye steak for $12.95 per pound with a coupon for $5.00 off the total cost. d) the cost of purchasing c crates of strawberries for $25.00 per crate of strawberries with a delivery charge of $10.00.