It malfunctioned after meeting with the African tribes.
The writer use this moment to intensify the plot of the stories. The boat was suddenly malfunctioned when he is being chased by the members of African Tribes while trying to safe Kurtz who is even too sick to help him in escaping the chase.
Answer:
their selfish attitude towards the affairs of the country
Explanation:
many Nation suffer backwardness in their country due to their greedy attitude towards the affairs of the country