Question

Which words in the sentence are the adverb clause?

Our neighbor Henry watered the plants on our back porch while we took a family vacation
 A.

our back porch while we    
B. the plants on our back porch    
C. while we took a family vacation    
D. our neighbor Henry watered .

Answer 1

the answer is C because it can't be a or. D is a prepositional phrase not a clause. the answer would then be C answering the question of when Henry watered the plants.