The answer is B: How they will affect your readers/audience.
Explanation for each option:
A. How popular the choices are with people you know - This option is incorrect because writing choices should be based on the needs and expectations of your intended audience, not just the preferences of people you know. Popularity among acquaintances does not necessarily translate to effective communication with your target audience.
B. How they will affect your readers/audience - This is the correct answer. When making writing choices, it is crucial to consider how your decisions will impact your readers or audience. Effective communication involves understanding your audience's needs, expectations, and how they will interpret your message.
C. How easy or difficult the choices are - This option is incorrect because the ease or difficulty of making certain writing choices should not be the primary factor. While it's important to consider your own capabilities, the focus should remain on how well your choices serve the purpose of your writing and the audience's understanding.
D. How time-consuming the choices are - This option is incorrect because, although time management is important, the quality and effectiveness of your writing should take precedence. Prioritizing time over the impact on your audience can lead to less effective communication.