A and B I think! I hope this helped! :))
It says in the text that millions or people had come from different parts of the country to go into Washington, D.C. to protest. So congregate means to gather around in a mass.
So the context clues would be “meet on the National Mall” “millions of people” “their voices heard”.
hope this helps
That a disease can be very contagious and risk life to die.
People were eager to return to Philadelphia and get back to their normal lives. George Washington was especially interested in returning to Philadelphia so Congress could meet and keep the government running. However, people often returned too soon, and the yellow fever was not yet gone. It was still lingering in people's homes, which caused people to continue getting sick.
