Final answer:
A package loan is the correct answer as it finances the purchase of both a property and its contents, making it suitable for buying a model home and its furnishings.
Step-by-step explanation:
The buyers who purchased a model home along with all its furnishings and appliances would likely have used a package loan. This type of loan is designated for transactions where the property and its contents (like furnishings and appliances) are included in the sale and financing arrangement. It is separate from the other listed types of loans. For instance, a buydown involves temporarily reducing the interest rate on the mortgage, a blanket loan covers multiple pieces of property, and a wraparound loan allows a new mortgage to be created while maintaining the old one. Package loans are particularly useful for developments or model homes where the developer or builder wants to sell a ready-to-move-in house with all the trimmings.