Which definition best fits the word plethora as it is used in paragraph 5?

a collection acquired over time

insincere in nature

a group of five or more

an excessive number of

A large or excessive amount of something.

Explanation:

Synonyms can include, excess, abundance, overabundance, superfluity, surfeit, profusion, more than enough, too many, too much, enough and to spare, superabundance, surplus, glut, flood, torrent, deluge, embarrassment;