A plane is an undefined term of geometry.
The statement that explains the difference is (c) A plane does not have a formal definition, and a ray is described through undefined terms.
In geometry, a plane do not have a particular definition.
The definition of a plane is depedent on the example or concept that is being describe.
A ray on the other hand is defined as a function of the undefined terms of geometry.
Hence, the statement that explains the difference between a plane and a ray is (c)
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