Respuesta :
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.
NovaNet: Because of the Great Depression, these men needed to work.