The correct answer is A. You are right.
Answer: I think its C .
C .It is a run-on sentence.
Explanation:
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Based on the sentence, the adverbial clause is "after he finishes football practice". Adverbial clause is a set of words that is usually preceded by subordinating conjunctions such as after, if, etc.It usually answers the question when, where, what, how or by how much.
"Themes may be specific to one culture or apply to multiple cultures" is the only statement that is true, since themes can vary widely both in subject and interpretation by the reader.