In the book Heart of Darkness

Why does Marlow hallucinate after Kurtz's death

A. He contracts a deadly illness

B. He's drugged by one of the native

C. He's fatally wounded while defending his boat

D. He's overcome with guilt at killing Kurtz

Marlow hallucinates after Kurtz's death because A. he contracts a deadly illness. He falls extremely ill and is on the brink of death himself after Kurtz dies. However, he manages to overcome the disease, and returns home to Kurtz's fiancee, to tell her what happened to him. She asks him to tell her his final words, and he lies to her, telling her that his final words were her name, when in fact he said - The horror, the horror!