(b) If the tenant has occupied the unit for less than one year and does not have a lease term of at least one year, the landlord shall provide at least thirty days' notice.
(c) If the tenant has occupied the unit for more than one year but less than two years, or has a lease term of at least one year but less than two years, the landlord shall provide at least sixty days' notice.
(d) If the tenant has occupied the unit for more than two years or has a lease term of at least two years, the landlord shall provide at least ninety days' notice.