I would say D, since A and B would be highly irrelevant. C sounds like a possible answer, but could still be viewed as irrelevant since it doesn't actually contain info about MP3 players.
Answer:
D
Explanation:
A bolt of silk... Is a roll of cloth
The correct genre for this situation would be B. Website.
This is considered internet genre and is the best possible method of giving driving directions, because it would be easily accessible, and availabe to the public. The other options are more direct, and are more recommended for personalized information. (With the exception of customers that are subscribed to receive updates on the restaurant)