Fluorescent Fixtures Mounted on Low-Density Cellulose Fiberboard Must Generally Be

Multiple Choice

Fluorescent fixtures mounted on low-density cellulose fiberboard must generally be mounted ____ the fiberboard surface.

A) 1-1/2 in. (38 mm) from
B) on strut-type channels or rod-type hangers below
C) with a backboard of fire-resistant material between the fixture and
D) none of the above