Final answer:
Christian and Hopeful leave Ignorance because he refuses to follow the correct path to the Celestial City and ignores their counsel. The correct option is C.
Step-by-step explanation:
In The Pilgrim's Progress by John Bunyan, Christian and Hopeful choose to leave Ignorance because C) Ignorance refuses to follow the path.
Ignorance disregards the advice and warnings given by Christian and Hopeful regarding the need to acquire a certificate that can only be received in the Celestial City.
His refusal to follow their counsel on this critical matter is rooted in self-confidence and complacency about his perspective of salvation, which is not aligned with the rigorous journey that Christians and Hopefuls are undertaking.