D. "his sister, who had taken a sales job, learned shorthand and French in the evenings so that she might be able to get a better position later on"
Answer: B. While both sides agree that processed foods are more convenient, the damage they do to a person's health should not be ignored.
"Finding common ground" means trying to find the areas in which both sides of a debate agree on. In this example, both sides on the debate on processed foods agree that this type of foods are more convenient. Finding common ground when addressing a counterclaim can ensure that both sides listen to the statement, instead of one side feeling alienated or ignored.
