OG详解-OG6 文法 Q29

Choice B is the best answer. The sentence emphasizes the sample collected from Serra de Itatiaia, noting that Bandeira collected a Polytrichum juniperinum sample there in 1925.
Choice A is incorrect. The sentence introduces Bandeira to an audience unfamiliar with her work; it doesn’t emphasize the sample she collected from Serra de Itatiaia. Choice C is incorrect. While the sentence mentions the sample Bandeira collected from Serra de Itatiaia, it doesn’t emphasize this sample over the sample from Ponte do Inferno. Choice D is incorrect. The sentence provides examples of the botanical samples Bandeira collected; it doesn’t emphasize the sample collected from Serra de Itatiaia.