Which sentence contains an adverb clause?

A.
Once we unpack our suitcases, we will jump into the indoor swimming pool.

B.
My cousin, who tells very funny jokes, will surely make me laugh.

C.
My family lives in Boston, which often has much cooler weather.

D.
We are traveling across the country to visit relatives in Arizona.

Question

Which sentence contains an adverb clause?	
 
 A.
Once we unpack our suitcases, we will jump into the indoor swimming pool.
 
 B.
My cousin, who tells very funny jokes, will surely make me laugh.
 
 C.
My family lives in Boston, which often has much cooler weather.
 
 D.
We are traveling across the country to visit relatives in Arizona.

anonymous · Answer

B - the phrase inside the commas makes the adverb clause.

anonymous · Answer

thank you so much!!!! @Saeeddiscover