Suppose that in a banking system a transfer is carried out in the following way: a transfer object is created to control the interaction, and the two accounts and the amount to be transferred are then passed as parameters to a doTransfer() method in the transfer object. Draw a collaboration diagram, based on based on the below object diagram, illustrating this interaction. Draw a sequence diagram showing the same interaction and discuss which is the most suitable diagram in this case.

:Bank withdraw(50) deposii(50) a1 Account a2: Account