There is a simple way to put a big dent in the national human-organ shortage: Allocate organs first to the people who have agreed to donate their own. Giving organs first to registered donors would persuade more people to register, and that would make the allocation system fairer. People who aren’t willing to share the gift of life should go to the end of the waiting list.

The following selections were taken from letters-to-the-editor newspaper columns. Each contains one or more arguments, but the exact form of the argument may be hidden or ambiguous. Use the argument forms presented in this section to structure the selections as specifically named arguments.