Johns-Manville, the Largest Manufacturer of Asbestos, Endangered Workers by Doing

Johns-Manville, the largest manufacturer of asbestos, endangered workers by doing all of the following except:

A) deciding not to install a dust-control system.
B) providing inadequate insurance coverage.
C) failing to inform workers of dangers after learning of them.
D) not informing symptomless asbestosis victims of illness.