Final answer:
In the context of Biology, nociception refers to the body's response to injured stimuli, which is mediated by nociceptors, the specialized pain receptors.
Step-by-step explanation:
The subject of this question is Biology, more specifically related to the sensory system and how the body perceives pain. Nociception is the sensory nervous system's response to certain harmful or potentially harmful stimuli. When considering the options provided, nociception specifically responds to injured stimuli. This is because nociceptors, which are pain receptors, are activated by potential damage to the body's tissues, resulting in the sensation of pain. Therefore, the answer to the question is (a) injured stimuli.