Which situation describes a time when it would be all right to round the numbers?

a.
taylor's pattern calls for a piece of material that is 10.4 yards long and another that is 3.25 yards long. she thinks of rounding the lengths to the nearest yard. she would cut the pieces 10 yd and 3 yd.

b.
angelo wants to buy a sandwich for $5.75 and another sandwich for $5.50. the cashier thinks of rounding both numbers to the nearest dollar. she would charge $6 for each sandwich.

c.
mia's dessert recipe calls for 2.75 pounds of cherries and 4.5 pounds of apples. she thinks of rounding the weights to the nearest pound. she would buy 3 pounds of cherries and a 5 pound bag of apples so she has enough fruit.

d.
aidan wants to buy a jacket that costs $75.29 and a shirt that costs $19.25. he wants to be sure he has enough money. he thinks of rounding the prices to the nearest dollar.