Please answer and kindly explain.

Which of the following statements regarding the landlord's right of entry and re-entry is FALSE?

A. The landlord may enter the premises and place "for rent" or "for sale" signs on the premises at any time during the lease.

B. The landlord may forcibly enter the premises when the tenant is unable to permit entry into the premises during an emergency.

C. The tenant shall permit entry into the premises during an excavation of a neighboring property to allow the landlord to safeguard the walls of the premises from damage.

D. The landlord may enter the premises to perform any covenant in the lease (excluding the payment of rent) on the tenant's behalf that has been in default for 10 days.