if a tenant covenants to deliver up the premises in good repair at the end of the lease term, but fails to do so, what is the landlord entitled to in BC Canada? 1) the amount of one month's rent 2) the cost of putting the premises in good repair plus compensation for not being able to use the premises while repairs are underway 3)only the cost of putting the premises in good repair 4) the landlord is entitled to specific performance, accruing rent until the tenant puts the premises in rentable condition