The correct answer is option D.)
My friend that wants to be a doctor is named Cameron.
I think that this is a very good opening paragraph. I can clearly tell exactly what your writing piece will be about, and it definitely hooks me in as a reader... GOOD JOB!
The answer is probably 200-250words and no more.
I know this because i saw a lot of questions asked me to do documented summary with 200-250words last year.
Hope this one is correct.