Consider the present pandemic and  at least one part of it that has to do
 with federalism.​

. The federal government has the power to provide medical supplies, transfer money to state governments, bar individuals with coronavirus from entering the United States, and fund research for a vaccine. It cannot, however, impose statewide quarantines. Nonetheless, responsibility for making decisions about the pandemic rests with the states, not the federal government, so look to your state governor for an update on your state’s individual restrictive stay-at-home measures during this pandemic.

Explanation:

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)