For light to travel across the solar system, it will take ______.

A．students attend a school only part-time
B．students purchase false degrees from commercial firms
C．students never attended a school they listed on their application
D．students attended a famous school

A．performance is a better judge of ability that a college degree needs
B．experience is the best teacher
C．past work histories influence personnel officers more than degrees do
D．degree from a famous school enables an applicant to gain advantage over others in job competition