Answer:
D. Time, Harvard
Explanation:
A proper noun is defined as the 'name of a particular person, place, organization.'
Time is the name of an American weekly news magazine.
Harvard is the name of a private Ivy League research university in the USA.
A. because preposition has a pronoun or noun with a word relating another noun or pronoun
The neolithic revolution was also called the pastoral revolution
the answer would be the second answer
