Courage is a virtue seems like the answer, but I haven’t read the book. Though, I’m making an education guess because it takes courage to go to the moon.
The types of citations which are often used across all citation styles are:
(D) in-text and after-text
When using information from another source, the writer must make an in-text citation right after the information such as a quote has been used. A more detailed citation is made at the end of the text.
