These laws are universal in their application,
regardless of cultural beliefs geography, or climate.
If pots have no bottoms or have large opening in their sides,
they could hardly be considered containers in any traditional sense.
Sine the laws of physics, not some arbitrary decision,
have determined the general form of applied-art objects, they follow basic pattens, so much so that functional forms can
vary only within certain limits.
Q: The word [they] in the passage refers
A applied-art objects
B the law of physics
C containers
D the sides of pots