Answer:
The sentence that contains a noun clause is D. My top priority was that we get to the game on time.
Explanation:
A noun clause is a clause -a group of words that includes a subject and a verb that work together as one part of speech- that plays the role of a noun. Noun clauses are always going to be dependent clauses that cannot stand alone and could function as a subject, object, preposition, adjective complement or subject complement, like in sentence D. The noun clause in sentence D is that we get to the game on time, that is functioning as a subject complement of the verb was.
