ANSWER: a. it contains images and hieroglyphics instructing the ka in the underworld.
EXPLANATION: The Book of the Dead which is also known as Book of Coming contains the images and hieroglyphics instructing the ka in the underworld. It also contains collection of magic spells intended to assist dead person's journey through the Duat or underworld. It also helps into the afterlife and was written by may priests for more than 100 years. It was part of the tradition of the funerary texts which also contains pyramid texts and coffin texts painted on objects and not on papyrus.