From what I remember, c is the correct answer.
Every 85 years it shows it is expected in 2061
Well, it almost sounds like a rhetorical question. Who can? Well, probably someone higher in power with the help of technology. They already have cameras being built into the suits due to the reports of unfair treatment from police officers. We could possibly have people from the government watch over footage from the cameras or have supervisors go with them. Anyway, that's my possible answer/opinion to that subject. Maybe that can give you some insight (-:
The CN tower is the tallest freestanding structure in the Western Hemisphere.