Answer:
Bertrand Russell and Rembrandt are<u> the proper nouns.</u>
Explanation:
A noun is a word that names a person, animal, place, thing, or idea. Also, there are 2 main types of nouns: proper and common nouns.
<u>Common nouns</u><u> are words that name general items (book, cat, table, etc.). </u>
<u>Proper nouns</u><u> are words that represent the name of a single object (Maria, San Francisco, Mr. Smith, etc).</u>
Proper nouns include first names, surnames of people, animal names, names of cities, countries, streets, rivers, seas, and oceans. Proper nouns are always written with a capital letter.
To sum up, a common noun is a general way of classifying something, and a proper noun is a specific way of classifying something. For example, the word <em>cat</em> is a common noun, but if your cat was called <em>Minny</em>, the word <em>Minny</em> is a proper noun.