Row 1: The odd one is C because the cat is facing a different direction.

Row 2: The odd one is C because the magic wand has no stars around it.

Row 3: The odd one is C because the pumpkin has a cat face instead of a normal one.

Row 4: The odd one is D because the cauldron has black bubbles while the others do not.

Row 5: The odd one is E because the haunted house is upside down.