Final answer:
According to Regan's Intrinsic Rights view of animals, only sentient beings have rights. So, the correct answer is option c.
Step-by-step explanation:
According to Regan's Intrinsic Rights view of animals, the true claim is that Only sentient beings have rights. Regan argues that animals have inherent rights because they are sentient, meaning they have the ability to experience pleasure or pain. He believes that all individuals who are subjects-of-life, which includes animals, have inherent value and should be treated with respect and not used solely as a means to human ends.
So, the correct answer is option c.