Answer:
A. words and phrases that are directly related to the topic at hand.
Step-by-step explanation:
If you want to be precise, you will use words that are straight to the point; you will not beat about the bush but rather be direct and not hide your intentions. You will use words that are specific and closely related to the topic you are talking about. If you use words that are vague, you will not get your ideas across as well as you would with precise language which makes everything clear.