Question

Read the following​ sentence, and then select the group of words that consists of only nouns. His work in the 1930s consisted primarily of laboratory experiments in​ learning, using pigeons as​ subjects. A. ​work, primarily,​ laboratory, subjects B. h​is, ​work, experiments, learning C. h​is, ​the, consisted, pigeons D. ​work, experiments,​ pigeons, subjects

Answer 1

D. ​work, experiments,​ pigeons, subjects

Step-by-step explanation:

These words are all nouns.