Does anyone know either of these?

I pretty sure its the verbal phrase but heres all the defs

Explanation:

Sub clause-a clause, typically introduced by a conjunction, that forms part of and is dependent on a main clause

independent clause is a clause that can stand alone as a sentence  

Dependent clauses is one that cannot stand alone as a complete sentence  Remember that a clause has a subject and a verb.

Verbal phrase- In linguistics, a verb phrase is a syntactic unit composed of at least one verb and its dependents—objects, complements and other modifiers—but not always including the subject.

A gerund phrase is a phrase consisting of a gerund and any modifiers or objects associated with it.

returning points to main account

explanation:

the answer is d. she became an english professor at university of georgia.