Write a Ratio of Fertilizer to Water and Simplify It

Multiple Choice

Write a ratio of fertilizer to water and simplify it, if possible. Useful facts:
16 tablespoons = 1 cup
16 cups = 1 gallon
Sylvia adds 8 tablespoons of plant fertilizer to a gallon of water.

A) 1 to 4
B) 1 to 32
C) 1 to 64
D) 1 to 128
E) 1 to 8