Is the underlined clause independent or subordinate?

a man whose name was rip van winkle once lived near the catskill mountains.

a.
subordinate

b.
independent

b. failure at least that one seems the most negative out of all of the answers provided pls correct me if i'm wrong. : ))

based on the biblical principle proverbs 16: 32, i agree with the author of the passage "better is it that it takes longer to be angry than the strong " to the extent that i share the philosophy that the nobility of heart demonstrates the strength of a person. those who are very proud, get angry easily and show their anger toward others are really weak, but those who are noble and do not constantly obfuscate or contain their feelings of anger, are strong people