Richard isn’t a very bright man
Because she is the "bad guy." Protagonist is good, antagonist is bad.
C. If they know you don't care then its less likely that critics will criticize your persuasive argument, or D will also work
The correct answer is D. The audience knows something the character or the characters don't.
This is a pretty common literary technique used in plays and its usage goes as far back as Ancient Greece. This is especially noticeable in tragedies where the audience knows what is being plotted while the main characters do not.
Answer: support his wife and three children