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.
Choosing a song that motivates you to perform better and fills in determination is totally a personal choice according to one's interest. But according to the situation, I think Insane in the brain fits well.
<u>Explanation:</u>
Music is listened to by a lot of people while doing some kind of work because this is on the grounds that music can build incitement, as there's an association between sound-related neurons and engine neurons.
That is the reason music regularly makes us progressively portable and persuades our body to move. Physical action sparkles mental movement; in this manner, music energizes profitability and inspiration.
The correct answer is secondary
Explanation: Secondary Control
It is a specific type of method, where the person in question has indirect control over another person's environment.