Questão de Inglês - EsPCEx 2020 - About the words purposefully, carefully and efficiently (paragraph 4) , it is correct to say that

About the words purposefully, carefully and efficiently (paragraph 4) , it is correct to say that 

[A] they are adjectives. 

[B] they are nouns. 

[C] they are verbs. 

[D] they are prepositions. 

[E] they are adverbs.

RESPOSTA:

Letra E.