A landlord who rents out a single-family house and needs to insure the building and lost rental income would most appropriately use a:

解析

A Dwelling policy (DP form) is designed for residential property, including non-owner-occupied rentals, and can cover the building and fair rental value. It does not automatically include personal liability, which can be added by endorsement. HO-4 covers a tenant's contents, HO-6 covers a condo unit owner, and neither fits a landlord who needs building and rental-income coverage.