what country was most pivotal in ending japans policy of isolation?\nchina\nkorea\nphilippines\nunited states

what country was most pivotal in ending japans policy of isolation?\nchina\nkorea\nphilippines\nunited states
Answer
Brief Explanations:
In 1853, Commodore Matthew Perry of the United States led a fleet to Japan. The show of force and subsequent treaties (like the Convention of Kanagawa in 1854) pressured Japan to open its ports and end its long - standing isolationist policy (sakoku).
Answer:
United States