Explanation:

- The phrase “Once a mortgage, always a mortgage” is a legal maxim mostly used in property law.

- It means that once a transaction is defined as a mortgage, it will always remain so, regardless of any terms that try to prevent the borrower’s right to redeem the property.

- This principle protects the mortgagor (borrower) from unfair practices, ensuring they can get their property back after repayment.

- Option 1 (Absolutely True): This is correct, as courts uphold this principle strictly.

- Option 2 (Absolutely False): Not correct, it ignores the legal maxim.

- Option 3 (Partly False): Not accurate; the rule is quite rigid.

- Option 4 (Partly True): Also not accurate due to the strict application.