How did the Qin dynasty improve safety in China? O The Qin made laws banning foreigners from China.
O The Qin built a defensive wall to protect from invasion.
O The Qin built seaport walls to defend against foreign raids.
The Qin required military training for all Chinese citizens.

The Quin Dynasty were responsible for creating the Great Wall Of China. This wall was ginormous and helped China stay safe from any enemies.

what are local authorities doing to fix the problem

explanation:

president jefferson protested this interference in american trade. he sent james monroe to london to negotiate a treaty. jefferson wanted britain to stop taking sailors from american ships, and to stop interfering in the trade of neutral nations. monroe tried many times to discuss such an agreement. but the british foreign minister was always too busy to see him.

explanation: