Final answer:
When financing the purchase of real estate, the borrower takes a mortgage from a lender.
Step-by-step explanation:
When financing the purchase of real estate, the mortgagor takes a mortgage from a lender. The mortgagor refers to the borrower or person who borrows money from the lender, typically a bank or financial institution. The lender, on the other hand, is known as the mortgagee. So, the correct answer is D. Takes a mortgage from a lender.