In the story "The Earthmen," Mr. Xxx shoots himself. This event occurs towards the end of the story when Mr. Xxx is faced with the devastating realization that his spaceship is irreparably damaged and he is stranded on an alien planet. Overwhelmed by despair and hopelessness, he tragically chooses to end his own life by shooting himself.
It is important to note that the other options provided in the question (a, b, and d) are not correct. The captain and the crew are not mentioned in relation to Mr. Xxx's shooting, and there is no indication that he shoots anyone else. The correct answer is c - himself.
This moment in the story serves as a powerful and poignant climax, highlighting the themes of isolation, despair, and the psychological impact of being alone in a foreign and inhospitable environment. The author uses this event to explore the depths of human emotion and the consequences of extreme circumstances.
I hope this clarifies the answer for you. If you have any further questions or need additional assistance, please feel free to ask. :)