The author argues that educating girls in developing countries is ______.
A) troublesome C) rewarding B) labor-saving D) expensive

A．unequal treatment of boys and girls in developing countries
B．the potential earning power of well-educated women
C．the major contributions of educated women to society
D．the economic and social benefits of educating women

A．It deserves greater attention than other social issues.
B．It is now given top priority in many developing countries.
C．It will yield greater returns than other known investments,
D．It has aroused the interest of a growing number of economists.