Which of the Following Is the Best Definition of a Tender

Which of the following is the best definition of a tender offer?

A) Combinations of firms that have been joined by merger, consolidation, or acquisition.
B) A public offer by one firm to directly buy the shares from another firm.
C) The positive incremental net gain associated with the combination of two firms through a merger or acquisition.
D) Agreement between firms to cooperate in pursuit of a joint goal.
E) Corporate takeover bid communicated to the shareholders through a stock exchange.