Which excerpt from "The Girl Who Silenced the World for Five Minutes" expresses an opinion?

starving children around the world

countless animals dying across this planet

holes in the ozone

I wonder if they will even exist for my children

Statements can be classified into facts or opinions. Facts are those statements which are based on actual evidences and explanations. On the other hand, opinions are subjective thoughts and are based on personal views. On the given options, the excerpt from "The Girl Who Silenced the World for Five Minutes" that states an opinion is option D.