Final answer:
When a cat is extremely fearful, the safest course of action is sedation. This calms the cat and reduces the risk of injury. Approaching the animal carefully and considering its emotional state is crucial.
Step-by-step explanation:
If a cat is acting extremely fearful, the most appropriate course of action to make the procedure more safe is A) Sedation. Sedation helps to calm the animal, reduce stress, and prevent potential injury to both the cat and the handler. Ignoring the fear (option B), making quick movements (option C), or using bright lights (option D) can exacerbate the cat's fear, potentially escalating the situation and making it more dangerous. It's crucial to approach fearful animals with care and to consider their emotional state to ensure a safe and successful procedure.