E. They are really bluffing), they could call their bluff by expressing “Bluff!”. If that player was in fact bluffing, they must just take all the cards over the table to be a penalty. When they weren't bluffing, the player who known as the bluff will have to go ahead https://n-h33109.blogocial.com/what-does-what-are-the-rules-for-deceiving-opponents-in-bluffing-games-mean-75048748