Concept:The question tests recall of the character’s action after being tortured and surviving a shipwreck.
Explanation:After the shipwreck, the tortured slave woke up on an island.
He found one of his torturers there, badly wounded and unconscious.
Instead of taking revenge or running away, he chose to care for the wounded slave master.
He nursed his torturer back to health.
This act of kindness is the key event described in the novel.
Answer:C. nursed his torturer back to health.