So, first you graduate your high school - you're 18 years old.
After this, you need four years in college -which means that you will finish college at 22, 4 years after you're 18
After this you will go to medical school for 4 years -until you're 26.
Then you have a residency of 5 years- 26+5=31, so until you're 31
after this you have a two year training until you're 33- so the correct answer is 33!