Which hill described in the table is the steepest?

Question

(Table)
Street: Horizontal (ft): Vertical Rise (ft):
Dixie Hill 60 20
Bell Hill 60 40
Liberty Hill 60 30
A. Bell Hill; it rises 2/3 foot for every 1 foot of horizontal travel.
B. Dixie Hill; it rises 1 foot for every 3 feet of horizontal travel.
C. Bell Hill; it rises 3 feet for every 2 feet of horizontal travel.
D. Liberty Hill; it rises 2 feet for every 1 foot of horizontal travel.

I say it's either A or D. Please check.

Answer 1

Which answer was correct?

Answer 2

A is