TOEFL Listening: TPO-TOEFL听力TPO - 7IZZ40VUQ261H9XJR$

What can be inferred about the student when she says this: A. She is skeptical about what the professor just told her. B. She just realized that she designed her experiment incorrectly. C. She is worried that she misunderstood something that she read. D. She had assumed that there was scientific evidence for the theory.