According to the section "Saqqara Was A Popular Place To Be Buried," WHY did people in ancient Egypt want to be buried at Saqqara?

A)They believed it had energy from the gods to help them get into the afterlife.
B)They believed it had offerings of animals to help them get into the afterlife.
C)They knew it was the only place with a temple for Bastet, the goddess of cats.
D)They knew it was the only place with statues of Ptah-Sokar, the god of funerals.