Final answer:
The responsibility of a landlord who owns rental properties is NOT to pay for any damages other than normal wear and tear.
Step-by-step explanation:
The correct answer is c. Pay for any damages other than normal wear and tear. This is not a responsibility of a landlord who owns rental properties. Landlords are responsible for providing habitable living conditions for tenants, which includes installing locks or other security features (a), keeping plumbing fixtures in good working condition (b), and making structural repairs in a reasonable amount of time (d). However, they are not required to pay for damages that are beyond normal wear and tear.