With regard to secondary schools, the author is mainly concerned about ________.

A．Pupils will form relationships with old pupils rather than teachers.
B．The setting of the primary school is comparatively simpler than that of the secondary school.
C．All the teachers in the secondary school are rather frightening.
D．Pupils have opportunities to get help from any teacher in the secondary school.

A．The difference between the primary school and the secondary school.
B．The method that pupils get help from the teachers.
C．The personal development of pupils in the secondary school.
D．The function of the secondary school.