Context: Japan is an archipelago [ar-keh-PEL-ah-go], or group of islands, in East Asia. There are four main islands that make up the Japanese archipelago. These islands are east of China, which is the largest country in East Asia today. Look at the map. Then answer the question below.
Which area on the map shows Japan?
A. A
B. D
C. B
D. C
Determine the correct option from the provided choices and reply with its corresponding letter.

B