On Friday, August $23,2016,$ a construction worker fell $55$ floors to his death while working on what will become Toronto$$s tallest condominium building. Despite a variety of safety precautions, this type of incident is not uncommon in the construction industry. Three days earlier, on Tuesday, August $20,2016,$ a $26-$year$-$old construction worker in Las Vegas, Nevada also died in a fall from a building under construction.

What organization would have the legal right to demand a mandatory investigation into the Toronto worker$$s death?

Question $2$ options:

Ontario Ministry of Labour

City of Toronto Building Department

Workers Insurance Safety Board $($Ontario$)$

the construction firm for whom he worked