Which sentence has an infinitive or infinitive phrase that functions as a direct object? a. because of the great depression, these men needed to work. b. in 1933, legislation was passed to establish the civilian conservation corps. c. to see their work, visit the campgrounds in death valley. d. their first task was to build barracks and other permanent structures.

The correct answer is A. Because of the Great Depression, these men needed to work. The infinitive phrase here that functions as a direct object is to work. The easiest way to find out what the direct object is is to ask the question - What? So, what did these men need? To work. B is incorrect because the infinitive phrase is used as an adverb. C is incorrect because the infinitive phrase is used as a subject. D is incorrect because the infinitive phrase is predicate nominative.