Question

Read the following​ sentence, and then select the group of words that consists of only nouns.

​Instead, he believed humans should turn their efforts to providing conditions that reinforce desired​ behavior, thus improving human behavior in​ general.
A.
​humans, efforts,​ behavior, thus
B.
​he, efforts,​ providing, conditions
C.
​Instead, humans,​ behavior, general
D.
​humans, efforts,​ conditions, general

Answer 1

A. "Thus" is not a noun, but a conjunction.

B. "He" is not a noun, but a pronoun.

C. "Instead" is not a noun, but a conjunction.

D. [All of them are nouns.]

The answer is D

Answer 2

The answer is D. Each word is a noun, meaning it is either a person, place, or thing, as well as an idea.