According to the passage, Key and his friends watched the British attack
on Fort McHenry from their boat in Baltimore Harbor. Based on this
information, you can tell that they
planned to write "The Star Spangled Banner the
whole time.
were concerned about the fate of Baltimore and Fort
McHenry.
Eliminate
tried to warn soldiers at Fort McHenry of the
upcoming attack
played an important role in the American victory oven
Great Britain

They were concerned about the fate of Baltimore and Fort McHenry.

A.) They only thought to write the Star Spangled Banner after the American flag was standing, not during the fighting.

B.) they stayed and watched because they were concerned about the fighting and what would happen if the Americans lost.

C.)they didn’t do this.

D.) They just watched, no important role was established that turned the tide.

So the answer is b, hope this helps!