jocelyn was shopping at a farmer's market. she observed the prices of cucumber's at several stands. which sign shows a proportional relationship in the pricing of the cucumber's? is it A, 5 cucumber's for 2.50,10 cucumber for 4.00,15 cucumber for 5.50,20 cucumber for 7.00 is it B, 5 cucumber for 2.50, 10 cucumber for 4.50,15 cucumber for 6.50,20 cucumber for 8.50 is it C,5 cucumber for 2.00, 10 cucumber for for 4.00, 15 cucumber for 6.00, 20 cucumber for 8.00, or is it D, 5 cucumber for 1.50,10 cucumber for 3.00,15 cucumber for 6.00,20 cucumber for 12.00