The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 70 years old male patient presents with amblyopia, exeional chest pain, episodic tachycardia and extra systoles on FCC. What is the probable cause?   (A) Cocaine poisoning   (B) Chronic nicotine poisoning   (C) Arsenophagia   (D) Cannabis ingestion
['(B) Chronic nicotine poisoning <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Cocaine poisoning \n (B) Chronic nicotine poisoning \n (C) Arsenophagia \n (D) Cannabis ingestion <> possible answers', '  A 70 years old male patient presents with amblyopia, exeional chest pain, episodic tachycardia and extra systoles on FCC. What is the probable cause? <> context@']