Which statement is an example of pathos?

Plastic is a material that is used to make numerous items that people rely on in everyday life.
Each year, more and more plastic is thrown into our oceans, which has long-lasting effects on the environment.
If people do not recycle and reuse plastic products, future generations will be burdened with an environmental disaster.
As a professor of marine biology, she has witnessed firsthand the impact that plastic trash has had on the ocean.