In real estate transactions, when representing the seller, a broker must disclose all facts known to them regarding the property or the transaction that materially affect its value or desirability to the buyer. Which of the following statements is true regarding the broker's disclosure obligations?
a) The broker must disclose all facts, regardless of whether the buyer could have learned them independently.
b) The broker only needs to disclose facts if specifically asked by the buyer.
c) The broker must disclose facts that the buyer is not aware of and could not reasonably discover through diligence.
d) The broker is not obligated to disclose any facts to the buyer.