Astrid Borrowed $500 000 from Bartholomew

Astrid borrowed $500 000 from Bartholomew. As security for the repayment of that loan, she created a mortgage over a piece of land called Blackacre. That mortgage was immediately registered. Which of the following statements is TRUE?

A) If Astrid sells Blackacre to Elsa, Bartholomew will no longer be able to enforce any proprietary rights against the land, but he will still be able to demand repayment of the loan from Astrid.
B) If Astrid defaults on the mortgage, and Bartholomew uses the remedy of judicial sale to sell Blackacre for $750 000, then the amount that he is entitled to receive may be somewhat greater than the value of the money that Astrid failed to repay on the loan.
C) Because of the rules regarding the equity of redemption, Bartholomew is entitled to assign to a third party the contractual right to demand repayment of the loan from Astrid, but Bartholomew cannot transfer to a third party the proprietary rights that the mortgage created with respect to Blackacre.
D) If Astrid sells Blackacre to Elsa, Bartholomew will no longer be able to demand repayment of the loan from Astrid.
E) Another party can acquire all of Bartholomew's rights if Bartholomew simply creates a contractual assignment.