I can't really answer this for you. I would love to write the essay for you but, I don't have time and this is your work. Here are some tips:
Gather the information that you'll need and then decide on how you want to start the essay. Say stuff like, If I was to be a nurse than.......or My grandfather has influenced me because.....
Then once you have your beginning paragraph, work on your body paragraphs, putting the least exciting information to most exciting information. Then wrap up your essay and conclude what you were talking about. Make sure you keep your readers attention. Hope this helps!
I would go with B. although because if you think and read. the sentence it make the most sense. hope this helps :)
