The noun clause found in the sentence is "that traffic blocked the roads into town," since it is a subordinate clause set off by a relative pronoun.
What is a noun clause?
A noun clause is a group of words containing a subject and a predicate. It is a dependent or subordinate clause set off by a relative pronoun such as "that" or "who," and it functions as a noun in the sentence, which means it can be the subject or the object of the sentence.
With the information above in mind, we can safely choose option C as the correct answer. The clause "that traffic blocked the roads into town" is a noun clause because:
- It is set off by the relative pronoun "that".
- It has a subject and a predicate.
- It functions as a noun in the sentence.
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