Answer:
B: 17/80
Explanation:
IN order to solve this you just have to divide the options an multiply them by 100 to calculate the percentage they represent:
13/200=.065*100=6.5%
17/80=.2125*100=21.25%
21/80=.2625*100=26.25%
17/40=.425*100=42.5%
AS you can see the one that is the closest to the option, would be "B", assuming that the percentage is 21.14%