Read the excerpt from “Americans mark 18th anniversary of Sept. 11 with tears, politics and remembrance” (2019): 1-Like the families, the nation is stlul grappling with the aftermath of Sept. 11.
2-The effects are visible from airport security checkpoints to Afghanistan, where the
post-9/11 U. S.-led invasion has become America's longest war.
The aim was to dislodge Afghanistan's then-ruling Taliban militants for harboring Al Qaeda leader and Sept. 11 mastermind Osama bin Laden.

What is the relationship between the two underlined sentences?

•The sentences state two different main ideas of the article.
•The first sentence states a problem and the second sentence gives a solution.
•The first sentence states a main idea of the article and the second sentence highlights a supporting detail.
•The first sentence states a claim from the article and the second sentence offers a statement of contradiction.