The Broker and the Seller Know of Major Plumbing Repairs

The broker and the seller know of major plumbing repairs needed on the seller's property. They, therefore, sell the house to a buyer "as is" but do not disclose plumbing problems. The buyer discovers the defects after closing and decides to sue the broker and seller. What is the most likely outcome of this decision?

A) The broker and the seller will win because of "caveat emptor"
B) The buyer has no cause because he signed an agreement to purchase "as is"
C) The buyer can collect because "as is" applies to obvious defects only
D) The buyer would probably win because the defects should have been disclosed