Number 3 would be the only logical choice in my opinion because everything else would be in a narrative or story of some sort. Expository essays are exclusively informational.
The compound sentence is letter C: She was disappointed, but she accepted second prize with grace.
Sentence structures 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.
Answer: The military has to work as hard as or harder than the terrorists.
Explanation:
basically the sentence says that terrorists are working hard to go against freedom so the military has to work as hard or maybe even harder to stop them.