A student is writing a paper about Benjamin Franklin’s contributions to science.

Which example should the student add to best develop this topic?


a Franklin created the first political cartoon ever to be published in the United States.

b Franklin established the Union Fire Company, which was the first volunteer firefighting organization in the colonies.

c Franklin served on a committee of five people who worked together to write the U.S. Declaration of Independence.

d Franklin invented the lightning rod to study electricity and help find ways to protect people and structures from lightning.