Final answer:
The phrase 'which is the oldest one on campus' in the sentence is a nonrestrictive clause, as it provides additional information without changing the sentence's main meaning. Nonrestrictive clauses are typically set off by commas. Thus, the correct answer is 'b) non-restrictive.'
Explanation:
Understanding Restrictive and Nonrestrictive Clauses
In the sentence My dorm, which is the oldest one on campus, does not have air conditioning, the phrase which is the oldest one on campus is a nonrestrictive clause. A nonrestrictive clause adds extra information about the noun it modifies but does not change the fundamental meaning of the sentence. In this case, the phrase provides additional detail about the dorm, but you could understand the main point—namely, that the dorm lacks air conditioning—even without this information.
In contrast, a restrictive clause is essential to the meaning of a sentence and cannot be omitted without changing the meaning. For example, in the sentence Students who study hard will succeed, the clause who study hard is restrictive because it specifies which students are being talked about. Without this information, the meaning of the sentence would change.
Conclusion
Therefore, the answer to your question is b) non-restrictive.
Learn more about clauses here:
https://brainly.com/question/41156674