The answer is C. My Aunt Meena, a nurse in a busy hospital, is from California
Appositives need a comma in front of and after the phrase, this is because the phrase interrupts the flow of the actual sentence.
Hope this helped!
~Just a girl in love with Shawn Mendes
It is a simile. so in your case a.
Autobiography! This should be it.
They should all be periods