What combination of symptoms includes carboluria, ochonosis, and miosis?

The combination of symptoms including carboluria, ochonosis, and miosis is indicative of phenolic acid poisoning. Carboluria refers to the presence of phenolic compounds in the urine, which is a direct consequence of exposure to phenolic substances. Ochonosis, or blue-black discoloration of connective tissues, can occur due to the metabolization and accumulation of phenolic compounds in the body. Miosis, or constricted pupils, is a common response to certain toxic substances, including those affecting the nervous system.

This set of symptoms aligns specifically with phenolic acid poisoning because these compounds can disrupt normal metabolic processes and exert neurotoxic effects, leading to the clinical manifestations mentioned. Other options, such as iron deficiency, xenobiotic exposure in a broader sense, and lead toxicity, do not specifically correlate with this distinct triad of symptoms and their biochemical implications.