For the chart below, assume A = knave, I = knight, & O = normal.

A B C
A I O
A O I
I A O
I O A
O A I
O I A

The first condition & the last 2 conditions cannot occur because contradictions would occur. In 2 of the second, third, & fourth possibilities, the knight is A, the person who claims to love cats. You would be wisest to bet on A, as there is better than a 66% chance that that individual is a knight.

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