The correct answer is A) it explains how Japan culture reflects a Chinese influence.
Is important to know that China is one of Japan's closest neighbors in that it explains how Japan culture reflects a Chinese influence.
China's influence on Japan was most notorious during the Tang Dynasty. For instance, Japan received the influence of Buddhism, Confucianism, and other elements of religion. From the 6th to the 12th centuries, in what was classical period, Japan received the influence of China. Migration from China and also from Korea brought culture and Chinese tradition to Japan.