Answer:
A simple sentence consists of only one clause. A compound sentence consists of two or more independent clauses. A complex sentence has at least one independent clause plus at least one dependent clause.
Explanation:
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D I think........................................................
<span>Yellowstone National Park, the West's oldest national park, is the site of Old Faithful.
All proper nouns are capitalized in this sentence correctly.</span>
I think this one is the second sentence.