Every person has to make a choice in any given situation. Sometimes its harder to decide what is better in the end. Critical decisions are the most important in any operation. In the martian the astronauts are put in a hard situation. Its hard to tell what is the right answer because there is pros and cons whichever path they take. They need to figure out what is better whether its better for one person or for themselves. In the book they come to the conclusion that the need of one person out weighs the needs of themselves. In the book the crew has a choice on whether they should save mark or themselves. The crew was so close in reaching home but they decide to go back and save mark despite the danger. They feel like they are obligated to