Answer:
To protect themselves from being enslaved.
<u>Answer:</u>
"The use of letters and secret meetings develops the theme that hiding the truth will eventually lead to hardship" best explains the conventions of plot and setting contribute to the theme.
<u>Explanation:</u>
Because, Mrs. Linde has left a note to meet her alone while Krogstad mysteriously came to visit her denotes that either meeting in public or in an open space will eventually lead to an issue that will be beyond their control. Here in the given options, both hiding the truth and revealing the truth will lead them to hardship. Revealing the truth will mess up both the lives and the people who are related to them as well. But hiding the truth is much worse as it will have a lot more consequences.
Cole could develop the idea by researching upon how global warming is affecting us right now, and also the future world. For example, ice caps are melting which could raise artic sea levels.
I don't really understand what u r asking but centeral idea is main idea if that's what u r asking...
