Final answer:
The correct sequence is Sensory, Integrating Center, Effector, where sensory input is registered, integrated in the CNS, and results in a response by the effector.
Step-by-step explanation:
The correct order of stimulus processing from sensory to effector is Sensory, Integrating Center, Effector. In this sequence, sensory input is first registered through receptor cells before being relayed to the central nervous system (CNS) for processing, which is known as integration. Once integrated, the processed information results in a response that is executed by the effector. For example, in the cerebral cortex, sensory processing begins in the primary sensory cortex, proceeds to an association area, and culminates in a multimodal integration area, which then triggers motor processing and an eventual response by an effector such as a muscle or gland.