This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
A man working as a pest killer comes to OPD with pain abdomen, garlic odour in breath and transverse lines on nails. MOST likely the person is suffering from: 
Select and explain. 
A. Arsenic poisoning, B. Lead poisoning, C. Mercury poisoning, D. Cadmium poisoning
A: Arsenic poisoning
Answer: A: Arsenic poisoning 
Explanation: Garlic odour and transverse lines on nails i.e. Mee's lines are features of chronic arsenic poisoning. Constitutional symptoms of chronic arsenic poisoning: Fatigue Weight loss Weakness Anemia Nonspecific gastrointestinal complaints Sensorimotor peripheral neuropathy, paicularly featuring a stocking glove pattern of dysesthesia Skin changes--among the most characteristic effects--typically "raindrop" pattern of hyperpigmentation, and hyperkeratoses involving the hands and feet Transverse white striae (Aldrich-Mees lines) on nails.