When a broker has two offers on the same property, both from salespeople within his office, and both with a deposit, he is placed in a dilemma. He decides not to present the second offer until the first offer has been accepted or rejected by the seller. The seller is not informed of the second offer. The broker's action is:

A) Legal, as long as the broker acts in the best interest of his client
B) Illegal, as the broker has a duty to present all offers to the seller promptly
C) Legal, as the broker is not required to present offers from within his own office
D) Illegal, as the broker is required to present all offers in a timely manner