97 students take part in a test and the median score is…

97 students take part in a test and the median score is 85. Which of the following descriptions must be correct? I.At most 49 students’ score are equal to or more than 86. II. At least 49 students’ score are less than 85. III. At least 49 students’ score are equal to or more than 85.

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #15096