there are 10 chickens in each coup on Mr. tiki's farm. a ration table has been created to determine how many chickens are are in 5 coups. is this ratio table set up correctly

Coup: 1 2 3 4 5
Chickens: 10 20 30 40 50
A The table has been set up correctly because the first and last ratios are equivalent.
B The table is set up correctly because at least two ratios in the table can be simplified to 1/10.
C The table has been set up correctly because all the ratios are in the table ratio evaluate to 1/5.
D The table is set up correctly because all the ratios in the table can be simplified to 1/10

D The table is set up correctly because all the ratios in the table can be simplified to 1/10.