Question

Identify the complete adverb clause. I'm going into the house because I'm cold.

Answer 1

The adverb clause in this sentence is G. because I'm cold.
An adverb clause is dependent, meaning that it cannot stand on its own. 
Since Im going into the house is independent, that means that the rest of the sentence is dependent. 
A clause needs to have a verb, which is why C, D, and E cannot be correct. 

Answer 2

In this sentence (I'm going into the house because I'm cold)
because i'm cold is complete adverb clause.
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