The correct answer is C. Although, negotiating for Jason Wilkins is a profession, for Emily Dane, it is skill she must learn.
Step-by-step explanation:
A gerund is a word that ends in -ing and acts a subject rather than as a verb. For example in "Surfing is funny" the word "surfing" is an -ing verb because it describes an activity. Additionally, gerunds can be identified because due they are placed before the main verb and are the entities of the action. Sentence C contains a gerund because, in this, the word "negotiating" acts as the subject of the sentence "negotiating for Jason Wilkins is a profession". "Negotiating" is the subject because it precedes the main verb "is" and it is the agent of this action or state.