Introduction:
In the chapter, the friends argue about several things, but the main point of contention is who has been doing the most work.

Explanation:
1. Who has been doing the most work:
- The friends argue about who has been doing the most work during their journey. This becomes a source of disagreement and tension among the group.
- Each friend believes that they have been contributing more than the others, and they try to prove their point by listing their individual tasks and responsibilities.
- For example, one friend may argue that they have been responsible for cooking meals, setting up camp, and packing the necessary supplies. They believe that these tasks require a significant amount of effort and should be recognized as hard work.
- Another friend may counter that they have been in charge of navigating and making important decisions during the journey. They argue that this role requires careful attention and mental exertion, which should be acknowledged as hard work.
- The friends' arguments escalate as they try to prove their worth and justify their contributions to the group. They become increasingly competitive and defensive about their roles and responsibilities.

2. Other arguments:
- While the main argument revolves around who has been doing the most work, the friends also argue about other things during the chapter.
- They argue about who is the funniest of the group, each friend claiming that they are the one who brings the most laughter and joy to the group.
- They also argue about who is the best at rowing, with each friend boasting about their rowing skills and claiming to be the most proficient.
- Additionally, there are disagreements about who should be in charge of navigation. Some friends believe that one person should take charge and make all the decisions, while others argue for a more democratic approach.

Conclusion:
In the chapter, the friends argue about various things, but the main point of contention is who has been doing the most work. They each try to prove their worth and justify their contributions, leading to escalating disagreements and tensions within the group.