"A residential lease must contain essential elements. Which statement is true regarding an element that is required to make a lease agreement valid?"

Options:

A. The commencement date on the lease agreement will be left blank until the tenant has resided in the rental unit past the 10-day cooling-off period.

B. The minimum period of time to lease must be included as stipulated by the Residential Tenancies Act.

C. The maximum period of time to lease must be included as stipulated by the Residential Tenancies Act.

D. A stipulated period of time to lease is required as the premises must ultimately revert back to the landlord.