Which sentence from the following excerpt contains an example of an infinitive phrase?
(1) Students also learn compassion. (2) By seeing the needs of others, they look beyond their own lives and realize that they can help someone else to lighten a load and make a difference. (3) Serving others opens people's eyes to the needs of their community. (4) Volunteering helps create a sense of value and ownership. (5) Teens realize that they are not only students, but they also are members of the community. (6) They know that they belong and realize that they can make a difference.
