The correct answer is (a) Honshu.
Honshu is the largest island of Japan, accounting for about 60% of the country’s land area. It is home to the capital city of Tokyo, as well as many other major cities such as Osaka, Kyoto, and Nagoya. Honshu is also home to a variety of natural features, including Mount Fuji, the highest mountain in Japan, and the Fuji-Hakone-Izu National Park.
Shikoku is the fourth largest island of Japan, located south of Honshu. It is home to the cities of Matsuyama, Takamatsu, and Kochi. Shikoku is known for its beautiful scenery, including its many mountains and rivers.
Hokkaido is the second largest island of Japan, located north of Honshu. It is home to the cities of Sapporo, Hakodate, and Asahikawa. Hokkaido is known for its cold winters and its natural beauty, including its many mountains and forests.
Kyushu is the third largest island of Japan, located south of Honshu. It is home to the cities of Fukuoka, Nagasaki, and Kumamoto. Kyushu is known for its hot springs, its volcanoes, and its beautiful beaches.