Питання 7 з 10

Запитання 7
Яке з речень правильно виражає теперішній результат минулої умови (mixed conditional)?
Варіанти відповідей
If I had studied medicine, I would be a doctor now.
If I study medicine, I would have been a doctor now.
If I had studied medicine, I would have been a doctor now.
If I studied medicine, I would be a doctor now.