OG详解-OG1 文法 Q24

Choice C is the best answer. The convention being tested is the use of punctuation between titles and proper nouns. No punctuation is needed to set off the proper noun “Yuree Lee” from the title that describes Lee, “plant cell biologist.” Because “Yuree Lee” is essential information identifying the “plant cell biologist,” no punctuation is necessary.
Choice A is incorrect because no punctuation is needed. Choice B is incorrect because no punctuation is needed. Choice D is incorrect because no punctuation is needed before or after the proper noun “Yuree Lee.” Setting the biologist’s name off with commas suggests that it could be removed without affecting the coherence of the sentence, which isn’t the case.