Which of the following details is MOST important to the development of the central idea in “Americans mark 18th anniversary of Sept. 11 with tears, politics and remembrance” (2019)? People who were too young on 9/11 to even remember their lost loved ones, and others for whom the grief is still raw, paid tribute with wreath-layings and the solemn roll call of the dead Wednesday as America marked the 18th anniversary of the worst terror attack on U. S. soil.

President Donald Trump laid a wreath at the Pentagon, telling victims' relatives there: "This is your anniversary of personal and permanent loss."

Near Shanksville, Pennsylvania, the third site where planes crashed on September 11, 2001, Vice President Mike Pence credited the crew and passengers who fought back against the hijackers with protecting him and others in the U. S. Capitol that day.

The aim was to dislodge Afghanistan's then-ruling Taliban militants for harboring al-Qaida leader and 9/11 mastermind Osama bin Laden.