Which of the Following Statements Is TRUE

Which of the following statements is TRUE?

A) An assignee under an equitable assignment acquires its rights "subject to the equities," but an assignee under a statutory assignment does not.
B) If the parties have tried,but failed,to create a statutory assignment,they cannot rely on an equitable assignment.
C) An equitable assignment is valid only if it is unconditional and complete.
D) An assignment of contractual rights sometimes is created by operation of law and without regard to the assignor's intention.
E) The doctrine of vicarious performance is a type of assignment.