Between 1630 and 1853, Japan experienced a period of self-imposed isolation from outsiders. What geographical feature most influenced Japan's isolation?

A.

Japan has many mountains.

B.

Japan has dense forests.

C.

Japan has many rivers.

D.

Japan is an island.

Reset

D, Japan is an Island, as rather than simply even walking to a different nation, they were isolated on a single island controlled only by themselves, having no one else to really contact that much until the Dutch came and eventually the Japanese started expanding into places like Korea.