Task: Question Answering
Input (English): Question: Ram's shop runs a sale on goldfish and platys. If one customer buys 13 goldfish and 12 platys for $5.60, and another buys 14 goldfish and 21 platys for $8.05, what is the ratio of the price of goldfish to platys?

 Option A: 0.8

 Option B: 0.75

 Option C: c

 Option D: 5/7

 Option E: 6/8
Output (English): Option D