<span>B.)The two viewpoints lend a greater validity to an overall picture.</span>
Some cultural beliefs are disliked more than others but a lot of them have similarities. This may cause confusion and arguments between two or more people that feel a certain way about a cultural. Another disadvantage is that some ideas were actually stolen from different cultures and it makes a lot of people mad since it was originally their idea and all the other person did was copy.
The sentences that take a plural subject are
Denise and Natalie play on the same basketball team.
It can be identified since this sentence is the only that has agreement with the verb. The other three sentences do not have a plural subject because even some nouns or noun phrases are joined with and, they refer to a singular subject (America's largest city and cultural center) (Hammers and Nails) because the verb is in the singular