A．Because there is the threat of suicide bombings near his school.
B．Because millions of children returned to school at the same time.
C．Because Cameroon is trying to make its school campus safer.
D．Because his parents took him far away from his school.

A．Tell their children not to talk with strangers.
B．Walk their young children to school.
C．Continue to stay even in the border area.
D．Refuse to send them to school.

A．Close 70 schools on its northern border with Nigeria.
B．Work with the local officials and police departments.
C．Search students and their bags with metal detectors.
D．Relocate more than 100,000 students to new schools.