Answer:
B). List adjectives.
Step-by-step explanation:
Narrowing topic is crucial as it not only specifies the area of research as a too wide topic could be unmanageable and may evoke conflicting opinions in the minds of the readers. There are different tools to specify(narrow) the topic as per your interest and resources like a Venn diagram or the formation of rhetorical questions, etc.
As per the question, one tool to narrow the topic could be 'listing adjectives' as it would aid to convert a general topic into a precise and specific topic for the research. Thus, the researcher could pay his/her attention to that specific topic and present it more effectively. Therefore, option B is the correct answer.