Final answer:
Option (C), In John Bunyan's allegory 'The Pilgrim's Progress', it is Hopeful who saves Christian's life in the river before Mount Zion by providing encouragement and support.
Step-by-step explanation:
The character who saves Christian's life in the river before the gates of Mount Zion is Hopeful. This event occurs in the allegory "The Pilgrim's Progress" by John Bunyan. In this scene, Christian is weighed down by his burden and begins to sink in the river. Hopeful helps him to stay afloat by encouraging Christian to have faith and stay calm. This moment depicts the significance of support and hope in overcoming obstacles on one's spiritual journey.