Which values of a, b, and c correctly represent the answer in simplest form?

3 and one-half divided by 2 and one-fourth = a b Over c
a = 1, b = 5, c = 9
a = 10, b = 18, c = 1
a = 9, b = 5, c = 1
a = 1, b = 10, c = 18