Which sentence includes an infinitive used as a direct object?

A) As a new faculty member, Susan wanted to succeed.

B) To win requires an enormous effort from our team.

C) Golnesa's career goal, to write, was never quite met.

D) The principal of the school is the individual to notify.

The answer is A.

Explanation:

Infinitive is a non-finite verb form (verb forms that do not have person, tense or number). It can function as a noun, adjective or adverb.

For example: to sing

Direct object is a word or a phrase which receives the action of the subject or it is under the influence of it. Generally it comes after a verb (without preposition).

For example: She made a cake.

Considering that direct object comes after a verb, in only one example we see that kind of construction and that is the answer A.

A

Explanation:

As a new faculty member, Susan wanted to succeed is correct, because to succeed is the infinitive being used as a direct object in this sentence. What did Susan want? She wanted "to succeed" (thus "to succeed" is the direct object of the verb "wanted.")