Which of the Following Is Not a True Statement

Which of the following is not a true statement?

A) If you are working with feldspar and quartz in a dust format, this can cause serious inflammation and scarring of your lung tissue called silicosis
B) If you are sandblasting quartz countertops, this type of work would require protective gear to prevent exposure to dusts that could lead to silicosis
C) Silicosis has become less common since OSHA instituted regulations for protective equipment which limits the amount of dusty inhaled by a worker
D) Coal dust inhaled by miners did not cause similar health issues like silicosis