Answer :
lets test out all the answers
A. 2/3 is about .666 so A is not
B. 3/5 is .75 so B is B also not
C 7/9 is 0.7777 which is still less so C is not
D. 4/5 is about 0.80 and this is more than 0.78 so D is the answer
A. 2/3 is about .666 so A is not
B. 3/5 is .75 so B is B also not
C 7/9 is 0.7777 which is still less so C is not
D. 4/5 is about 0.80 and this is more than 0.78 so D is the answer