I think tomorrow I ' m going to stay in and relax and do some studying and stuff ... if I get bored I might go to Ueno . Apparently Ueno has a zoo , a museum and a park . I think I might go to the park tomorrow and then go to the zoo and the museum later this week . Yuko says the museum has little ear phones you can use to hear English translations of the tour .
According to the above context, choose the best option to answer the following question.
Question: Why does the narrator need ear phones at the zoo ?
Options:
- The zoo is in a foreign country .
 - The narrator likes to have study tapes on while he is out .
 - The narrator likes to listen to music .
 - The narrator does not speak English .


The zoo is in a foreign country .