A complex sentence is given by the dependent and the independent clause. The second sentence talking about picking the cousins from the airport is a complex sentence. Thus, option B is correct.
<h3>What is a complex sentence?</h3>
A sentence that definitely includes the subordinate and the main clause that is linked through the conjunctions to the pronouns are complex sentence.
The second statement is an example of a complex sentence as it can be broken into two sentences that act as an independent clause that can act on its own and a dependent clause.
Therefore, option B. the sentence about driving to the airport to pick up the cousins is a complex sentence.
Learn more about complex sentences here:
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"B. I understand that Dr. Elliott earned <span>his M.D. at Columbia University" has correct punctuation since these are all proper titles, although it's not uncommon to see "MD" without periods. </span>
A as elapsed means pass go by in time therefore it's A
The one you have selected is correct
