Since the question specifies a "different personal reaction" I would say that the answer is the second option "Drawn from thoughts, feelings that change from person to person" since those are "personal" experiences.
Answer: Summarizing teaches how to discern the most important ideas in a text, how to ignore irrelevant information, and how to integrate the central ideas in a meaningful way. summarizing improves memory for what is read.
Explanation:
The answer to the first blank is C. It is important for a speaker to understand the needs of the audience because it helps the speaker to hone their message for the audience. Understanding the audience will give you the idea of what your audience is like then you can adjust yourself accordingly so that you can approach to them easily and you can be understood by them.
The answer to the second blank is B. Writers should avoid jargon because jargon limits what ideas can be explored. If a writer uses jargons, he wouldn't be able to write much because jargons are easily understood by people and there will be no need of further explanation.