Luna wanted to convince the technology department at her company to install new accounting software. some staff members supported the change, a few were opposed, and most were undecided. luna realized that the undecided group was her so she focused most of her effort on them.
a. majority audienceb. target audiencec. projected audienced. focus audiencee. central audience

Luna realized that the undecided group was her target audience  so she focused most of her effort on them.

Explanation:

A targeted audience is a publication, advertising or other text.   It is a particular group of consumers in the standard target market of marketing and advertising, known as targets or recipients of a specific ad or email.

In the end, it all includes assessing relevance for a target audience profile. You will attract a customer more often if your services and the goods you deliver suit what your audience wants.  

If your customer you want is "everybody," it's very difficult for you to communicate in a deeper way with anyone. The more connected you are to others; the more likely you are to be a protector and a loyal user of your company.

by knowing conditionality

explanation: