Answer: The above statement is False.
Explanation: The maintenance worker ignited the propane. 1. What statement supports that conclusion- This statement is based on assumption because the Maintenance worker would not ignite the propane and get himself injured at his workplace . 2. Another Assumption is that part of the staff may ignite the propane as a sabotage without the knowledge of the maintenance worker that it was on, so he just walked into the propane that got him injured.