A licensee lists a property with the knowledge that a major highway is projected to be built within fifty feet of the property and is instructed by the owner not to disclose this fact to prospective purchasers. The licensee should:$0$ Aservice the listing and disclose the information to prospective purchasers without the owner's knowledgeOB. comply with the owner's instructions to avoid a violation of his fiduciary obligations to the ownerO C$.$ advise the seller that unless disclosure is permitted the licensee must refuse the listingOD. service the listing and disclose this information only when asked by a prospective purchaser