The selection of medical professionals are currently based on ______.

A．children always ask their parents for opinions about marriage
B．the author thinks that in America marriages still bear class character
C．it is unusual for Americans to live together as a way of preparing for marriages
D．despite the different backgrounds, people still marry in America

A．financial status determines the choice of a marriage partner
B．young men and women should get married as soon as they fall in love
C．arranged marriages are hardly understood and accepted
D．love plays a critical role in marriage