Which of the Following Is an Illustration of the Possession

Which of the following is an illustration of the possession of tangible token rule?

A) An obligee who is owed $10,000 assigns the right of collecting $5,000 each to two assignees.
B) The right of collecting $10,000 is recorded in the assignee's savings account passbook.
C) The assignee can re-assign the right only to a subassignee selected by the obligee.
D) An obligee cannot assign a right to collection more than once.