Answer:
The correct answer is letter "D": something to exchange is missing.
Step-by-step explanation:
Marketing refers to all the efforts companies and individuals make to promote their goods or services. One of the functions of marketing is being a bridge between what a consumer wants and what companies or individuals can provide. In that scenario an exchange takes place.
Thus, as the candidate is not offering something you are looking for, there is no exchange in between being that the reason why you did not vote for her.