CIPA (Congenital Insensitivity to Pain with Anhidrosis) affects the ability to feel pain and temperature, which means that the sensory receptors primarily impacted are thermoreceptors (which detect temperature) and nociceptors (which detect pain). However, nociceptors are not listed among the options you provided. Given your choices, the closest answer would be:
thermoreceptors and mechanoreceptors
This option includes thermoreceptors, which is relevant to the condition, but mechanoreceptors are not directly involved in the inability to feel pain and temperature. Still, from the given choices, this would be the best selection.