Choose four words that make up a prepositional phrase.

The four words are:

"During the Chemistry experiment..."

Explanation:

The above words are the four words that make up the prepositional phrase.

A prepositional phrase is known to be a group of words which has a preposition with its object and other words that modify the object. Prepositional phrases can actually modify a noun or a verb.  

Examples of common prepositions that actually begin prepositional phrases in sentences are: to, about, during, behind, after, for, of, at, before, under, with, over, with, and by.

The above sentences begin with a preposition and it is answering the question of when the smoke filled the class.

the correct answer is b. in order to explain a point clearly in an essay, it is always better to include a clear example of your ideas. including an scenario in which a family is affected by consumerism will support your argument as well as supporting details, such as quotations from experts and statistics. option a could be correct, but statistics and quotations are supporting ideas rather than clear explanations. choices c and d are simply inadequate. they do not add information about the effects of consumerism, rather they are strategies for engaging the reader