A figurative language is defined, "Words or expression with a meaning that is different from the literal interpretation." These examples may help you on solving the problem you need assistance with.
1)All right, the sky misses the sun at night.
2)Her head was spinning from all the new information.
3)The poorest man is the richest, and the rich are poor.
4)I've told you a million times to clean your room!
5)I'm so hungry I could eat a horse.
However, there are types of figurative language such as metaphor, simile, personification, hyperbole, symbolism.
The selection that contains a fragment is B.
Every other sentence contains two distinct clauses put together by the use of a relative pronoun (which in A and C) or a conjunction (so in phrase D). In B, the two clauses "she doesn't give herself enough credit" and "that's too bad" are not linked syntactically and are simply juxtaposed.
Although not grammatically "correct", the use of a fragmented syntax a frequent trait of oral speech.