How is the Korean Peninsula similar to China and Japan?

a.
Most people on the Korean Peninsula like to east rice.

b.
Most people on the Korean Peninsula speak Chinese or Japanese.

c.
Most people on the Korean Peninsula live in areas of high elevation.

d.
Most people on the Korean Peninsula live on fertile plains.

d. Most people on the Korean Peninsula live on fertile plains.

Both China and Japan also have a significant portion of their populations living on fertile plains.