Answer:
To narrow a topic that is too broad, try to pick one sub-topic of the topic to focus on. If you are having trouble thinking of a sub-topic, try asking yourself questions about your topic. The answers to those questions can reveal sub-topics that might offer a possible route to narrow your topic.
Explanation:
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I would say aggressive, because you can’t really use the other words without being negative.
1.the internet
2 online catalogue (or less often card catalog) usually found on a PC and the front of the library
3 Author's name, title and call number
4 A number that indicates a books category and where to locate it in the library
5 the Dewey Decimal System on the library of Cosngress system
B is the answer for the question
⭐️The answer is⭐️
Think of the main idea as an —umbrella“ idea. It is the author's primary point about a topic. All other material in the paragraph fits under the main idea. In a paragraph, authors often present the main idea to readers in a single sentence called the topic sentence.