The six-banded armadillos eat vegetable because ______.

A．The tuition fee is lower.
B．It is more flexible.
C．The professors are more famous.
D．It helps to reduce traffic jams.

A．Because nationals are extremely strict in choosing journalists.
B．Because nationals have already employed many journalists.
C．Because nationals pay little salary.
D．Because nationals seldom recruit inexperienced employee.