Final answer:
Seller financing is also known as a Purchase Money Mortgage, where the seller provides the buyer with a loan to purchase the property. Option d is correct.
Step-by-step explanation:
The type of mortgage known as seller financing is d. Purchase money mortgage. A purchase money mortgage is a type of mortgage where the seller of the property provides financing to the buyer. This arrangement typically occurs when the buyer cannot obtain financing through traditional means, such as a bank loan.
The seller essentially becomes the lender and holds the mortgage on the property until the buyer pays off the loan in its entirety.