Final answer:
Occupancy is not a factor in determining quality housing conditions, while yard size, HVAC system, and plumbing are important factors. (option 3 is the correct answer).
Step-by-step explanation:
When determining quality housing conditions, occupancy is not a factor. Occupancy refers to the number of people living in a house and does not directly affect the quality of the house itself. On the other hand, factors such as yard size, HVAC system, and plumbing play a role in determining the quality of housing conditions.
Yard size is relevant as it affects outdoor space and potential amenities. An efficient HVAC system ensures proper climate control, and plumbing is crucial for sanitation and water supply. However, the number of occupants in a house is generally not considered a direct factor in evaluating the quality of housing conditions, as it is more related to personal preferences or specific needs of the occupants.
In evaluating quality housing conditions, factors like yard size, HVAC system, and plumbing are significant, while occupancy is not typically a direct determinant. The focus is on features that directly impact the functionality, comfort, and maintenance of the living environment.