Answer:
option D. On the confirmation of the transaction
Explanation:
in business transaction, there is no rule or requirement for disclosure of the commission charged to customers at the time of the trade or at the time of account opening. it is only after the confirmation of the transaction can it be disclosed. that is, the only requirement is that the commission be disclosed on the trade confirmation. Also remember that any commission charged must be "fair and reasonable."
The answer to the question is: the Union Navy served as block the forces of the Confederates so that they would not be able to trade or receive supplies or goods from other foreign nations. The Union also wanted to capture Richmond which is the capital of Confederacy.