Astronauts who experience weightlessness frequently get motion sickness. The astronauts see their own motion relativ...

Tyler808 September 18, 2022

Why Not C?

These kinds of questions just sets people up for failure.

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Emil-Kunkin February 15, 2023

C would actually weaken the argument. The author is trying to say that motion sickness is caused by a mismatch between inner ear and vision, C shows that motion sickness still occurs when that conflict does not occur.