Final answer:
Kingsolver had to learn how to read classical literature (option D)in Japanese, which required understanding of Classical Chinese, essential for intellectual pursuits in East Asia.
Step-by-step explanation:
Kingsolver needed to learn how to read classical literature in the Japanese language, specifically meriting familiarity with Classical Chinese. This knowledge was essential for intellectual activities, including cultural and governmental endeavors in East Asia.
Engagement with a variety of texts, including Confucian and Buddhist works, comprised part of the necessary literacy for educated individuals. In historical context, women of the court were known for their script-writing and documentation of court life, often in forms like hiragana and kanji.
Particularly in Japan, the development of hiragana offered a way to represent Japanese pronunciation, which differed from Chinese, while kanji characters were used for both visual arts and literary purposes.