OG1 阅读 Q8

Choice B is the best answer. In line 1("Akira... tradition"), the narrator suggests that Akira's direct approach broke "all tradition." The narrator then wonders if Akira had "followed form," or the tradition expected of him, would Chie have been more receptive to his proposal. In this context, following "form" thus means following a certain tradition or custom.
Choices A, C, and D are incorrect because in this context "form" does not mean the way something looks (appearance), the way it is built (structure), or its essence (nature).