When may you park your vehicle on a loading zone?

When may you park your vehicle on a loading zone?undefined
Never - they're only for commercial vehicles
You can park a car there after business hours and on weekends
You can park at any time for the purposes of unloading or loading people or goods, but you must not leave your vehicle for more than the time displayed on the sign
It's between midnight and 6am
At all times during business hours (8am to 6pm)

No explanation needed, please remember the statement of answer C.