Identify the compound sentence.

A. Because it had been sunny all week, we did not bring umbrellas.

b. The rain began to fall, but we did not want to leave.

C. Last summer, we decided to drive to the beach.

D. While it rained on the beach, we swam in the ocean.

The compound sentence in the above choices is letter b. The rain began to fall, but we did not want to leave. Sentence could be simple (one independent clause), compound (two independent clause with coordinating conjunction), complex (a subordinate & independent clause) and compound-complex sentences (subordinate & two independent clause). These include clauses, conjunctions, coherence and balance and even to the number of words you use in your subject and predicate. The benefit of complex or compound sentences is that it could give you more explanation on the subject or topic of the sentence. This gives you a much more understanding on what the sentence is trying to portray or to message to give.