Which of the following is not true of the Pyramids of Giza? a. Menkaure is the smallest of the three. b. Khufu is the oldest and the only one tombs have been discovered in. c. Khafre has a top of limestone and still hold some of its veneer. d. Khufu is the oldest and largest. It is believed that the slope of the sides was intended to mimic the sun rays. Please select the best answer from the choices provided A B C D