The condition CIPA (Congenital Insensitivity to Pain with Anhidrosis) affects the ability to feel pain and temperature, which are mediated by specific types of sensory receptors. Specifically, it impacts thermoreceptors (responsible for detecting temperature changes) and nociceptors (responsible for detecting pain).
Since nociceptors were not listed as an option in your responses, the closest option that pertains to the inability to feel temperature would be:
thermoreceptors and mechanoreceptors
However, it's important to note that mechanoreceptors are primarily involved in detecting pressure and touch, not pain. So the most accurate answer in the context of CIPA would focus on thermoreceptors and nociceptive pathways if they were available as options.