A map titled Medieval Japan with labels A through C. The Sea of Japan is between the mainland and A. A is an island between the Sea of Japan and the Pacific Ocean. B is the mainland. C is a peninsula north of the mainland. Choose the word or phrase that best completes each sentence.

The A on the map is the location of
.

The B on the map is the location of
.

The C on the map is the location of
.

The Pacific Ocean is
of Japan.

The Sea of Japan is
of Japan.

Japan is a chain of islands, also known as a(n)
.