Which of the Following Statements Is TRUE

Which of the following statements is TRUE?

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