________ of teachers in the school is 300, ________ of them are women teachers．

1. A.
   The number, one-third
2. B.
   A number, one-fourth
3. C.
   A number, one-second
4. D.
   The number, first-fourth

______of the teachers in the school is 300，______of them are women teachers．

A．The number; three fourth                    B．The number; three fourths

C．A number; three fourth                      D．A number; three fourths