The correct answer is:
The opponent’s shot was perfectly legal, and they won the point.
From The Code, Item 46:
The Code advises that towels should never be placed on a net, but once it has been placed there, it becomes part of the net, so the ball hitting the towel and then landing in the court is the same as it hitting the net and then landing in the court. Therefore, Sophia’s opponent’s shot was perfectly legal.
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