单选题
. ①Matisse's art, with its spectacular immediacy and its mysterious depths, poses confounding problems for analysis. ②When Hilary Spurling writes of
The Piano Lesson that "the picture can not be confined to any single source or meaning," she might be writing of any of Matisse's works. ③Picasso's themes, with their collage of traditional signs and symbols, are far more susceptible to conventional iconographic analysis than anything in Matisse. ④Similarly, the cubism of Picasso and Braque, while rejecting traditional perspective, can nevertheless be studied as an inversion of traditional norms, using the same tools that one uses to study those norms. ⑤But the solutions that Matisse arrives at are always idiosyncratic and tend to be unrelated to any system of ideas. ⑥Intuition is his only system.
49. The passage suggests which of the following about Braque's cubism? ______