Analysis of test questions: This question examines the basic knowledge of history. Drawing lessons from the former vassal states, the Song Dynasty implemented the strategy of valuing literature over martial arts, which not only reduced the combat effectiveness of the army, but also improved the development level of literature and art in the Song Dynasty. Under the influence of the development of commodity economy, the citizen class has been rising and growing. The rise of Neo-Confucianism in thought makes literati pay more attention to inner cultivation, which is also reflected in painting art, so (1) (2) and (4) are all correct, so C is chosen. (3) Wrong, the court's leaning to the south of the Yangtze River affected the painting style, but it did not lack progress.

Comments: China ancient painting art is a treasure in China art palace. Before the Song Dynasty, China's paintings were mainly literati paintings, emphasizing that there were paintings in poems and poems in paintings. Due to the rise of Neo-Confucianism in Song Dynasty, painting pays attention to artistic conception. After the Song Dynasty, due to the development of commodity economy and the rise of citizen class, a large number of folk paintings appeared.