A survey of 150 shoppers is conducted and the results displayed below show that, of the two flavors of a particular brand of jelly available, 84 prefer strawberry, 37 prefer grape, and 100 shoppers would buy one or the other or both. Fill in the empty table cells in the two-way frequency table. StrawberryNot StrawberryTotal
Grape 37
Not Grape 50
Total84 150
What is the probability (rounded to the nearest whole percent) that a randomly selected shopper would buy both grape jelly and strawberry jelly? (4 points)

a
21%

b
14%

c
33%

d
53%