D. Casual style
The cover letter includes some informal words that come across as casual and unprofessional, reflecting poorly on the job applicant. Some of the informal and casually styled words and phrases used include:
- "surfing the web"
- "I'm"
-"really would"
I answered this question, please refer to your other question :)
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.