Which of the following colors is NOT a variation of the Polish rabbit?

The Polish rabbit breed is known for its variety of colorations, but certain colors are recognized as standard for the breed while others are not. The options given include different coat colors, some of which are associated with the Polish breed and others that are not.

The "ruby eyed white" coloration is actually a recognized variation for several breeds but is not officially accepted in the Polish rabbit standards. In contrast, colors like "blue eyed white," "black," and "chocolate" are recognized variations of Polish rabbits.

This is why the selection of "ruby eyed white" is correct; it is not a standard color within the Polish breed. Understanding the specific characteristics and recognized colors of rabbit breeds is essential for showmanship and judging criteria.