I don't understand why A. is wrong. If one subject states that a majority is less than 20k (thus making the average lower than 20k), and the other subject states that the average is above 29k, how are they not disagreeing about the average salary being greater than 29k?!?
I guess I see why D. is correct, but I don't see why A. is incorrect. Any clarification on this would be much appreciated, thanks!
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