I believe the answer is d. i hope this helped
A, as a part of the introduction because it’ll back up your thesis statement.
an direct object is the thing being acted upon by the verb.
the object of a preposition is a noun, noun phrase, or pronoun that follows a preposition and completes its meaning. The object of a preposition is in the objective case. A word group made up of a preposition, its object, and any of the object's modifiers is called a prepositional phrase.
Answer:
the need for more industry in the South
Explanation: