Read the detail about Clara Barton.

Clara Barton worked tirelessly throughout her life to ease the suffering of others and make their lives better in any way she could, often at great risk to herself.

What best replaces this sentence with the informal style used in yearbooks?

A. Motto: Try to help others
B. Clara Barton believed in helping other people.
C. Clara Barton dedicated her life to the pursuit of helping others.
D. Motto: It is important to help others because no one should suffer.