It is what number. It is the proper way to say it.
The first revision ("Charlie is taking a dance class because he has to rather than because he enjoys it") is the correct answer :)
<span>A simple sentence (called an independent clause), includes a verb and noun.
Example: The boy fell (verb: fell, noun: boy)
Example: In the tub, the boy fell on his bottom. (verb: fell, noun: boy)
Example: The dog barked.
Example The dog barked at the cat last night.
Example: This question is odd.
Compound sentences include two independent clauses but doesn't require a dependent clause, and the independent clauses are connected using a conjunction (but), or punctuation like a semi colon (;) or comma (,).
Example: My friend invited me to the game but my parents didn't let me go. (2 clauses: invited to a game, parents didn't let him go. Conjunction: "but")
Example: I have to stay up all night to finish this, my meeting is first thing in the morning. (2 clauses: stay up all night, meeting in the morning. Punctuation is a comma).</span>
nope!
only if it's at the start of the sentence
