Someone courageous, someone doing something with courage.
Chapter 6, let me know if you have questions
The Answer Is "C"
This is because, when gaining information about multiple opinions of an issue, it does actually help you develop understanding of the issue more as well as improve how well you understand your own opinion as well, you will over all gain more knowledge and understanding and "C" is the only one that does not do this when "A" "B" and "D" do show gaining of knowledge and understanding.
Looks like the first one is correct since you’re expanding a sentence