The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?

A
Fusible links must be replaced if a damper is activated.
B
Fusible links are tested by applying a source of heat to them.
C
Fusible links must be replaced at every inspection for certification.
D
A fusible link will automatically open after a fire is extinguished and reset the damper.
E