2- 4 glasses, also depends on how old you are
The correct answer is b.
Answers a, b, and c are very similar. Form 301 is the Illness and Injury Incident Report; it is what is filled out, not posted.
The OSHA Form 300 A is the summary of work-related injuries and illnesses.
Part 1926 are safety and health regulations.
From the context of the question, I am going to say placebo. This is me assuming, however, that both groups were told that their drinks had the protein powder