The correct answer is sentence (5).
A sentence fragment means that it is only a part of a sentence; it is not complete. Given that it is incomplete, the fragment, aka subordinate/dependent sentence, has to be part of a larger, independent sentence, in order to make any sense. So if you combined sentence (5) with another one, it wouldn't be a fragment anymore.
D because if you read this carefully you need to see how it feels to you
Horatian satire is more witty and tolerant.
Named after the Roman satirist Horace
Gently criticizes human nature and human folly
Juvenalian satire is more angry and personal, attempting to produce anger in the reader.
Named after Roman satirist Juvenal
Attacks human vice-indignant