All of these are effective.
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.
Simply work on your reflexes and flexibility. you will slowly get better at moving between objects that are in your way.