Answer:
The third answer for #1.
The second option for #2.
Step-by-step explanation:
For the first question, it helps to ask yourself questions about the topic to become more familiarized by what you are writing about. By asking questions, you seek to find details that wasn't given to you when reading the topic's thesis.
For the second question, the main idea of something is basically telling you the more important/generalized thinking of a topic throughout a story or writing.
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