Ruby has a bad ear infection in one ear , and one brewing in the other ear . The vet thought it was from taking her swimming last weekend . So , I have to clean her ears and put in ear medication twice a day for 10 days . It should be interesting doing it by myself because she was not a compliant patient at the vet 's office with me and the assistant doing it .
According to the above context, choose the best option to answer the following question.
Question: Why does Ruby have an ear infection ?
Options:
A. She was given medication .
B. Water may have gotten in her ear .
C. The assistant helped her .
D. She went to the vet .


B