【单选题】Read the following paragraph and compare the three summaries. Decide which one is the best. Sociolinguistics is concerned with the ethnography of speaking, that is, with cultural and subcultural patte...
A.
Conversation differs around the world.
B.
North Americans may not respond appropriately to greetings in other societies.
C.
A foreigner may be familiar with the English language but not with the appropriate topics for making small talk.
D.
Sociolinguists are interested in how speech is used in different cultures and different social contexts, such as in making small talk and greeting people.