How did japan turn away from isolationism?

a. the french government was upset with japan so they entered the tokyo port and conquered japan, thus ending isolationism

b. a us naval commander entered the tokyo port and forced japan to open their ports for trading

c. the opium wars spread over the japan, and in turn they were no longer isolated

d. the british empire forced japan to build a new canal for trading purposes

Explanation:

Well, they were basically forced to. Or rather they did not see much choice in the matter. However, there was still strong opposition to doing so, which led to a brief civil war and a total change of government.

Japan was not totally unaware of advances in Western technology, since they had ongoing contact with the Dutch even during their period of isolation. But when the black ships (what foreign vessels were called) showed up on their shores, especially U.S. Commodore Matthew Perry’s fleet in 1853, to ask (or demand) that Japan open its ports to trade and restocking of ships from other countries, it was a huge shock to many people just how advanced the technology was, especially in shipbuilding and weaponry.

a countries leader should be motivated by the common good of the country.