input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 50 years okl smoker and hypeensive was diagnose to have non-small cell lung carcinoma with brain metastases. He is on enalapril and hydrochlorothiazide for hypeension. On investigation, he had a serum Sodium 120 mg/dl|, Urinary Sodium ll0 mg/dl, Serum creatinine 0.8 mg/dL, Serum osmolarity 285 mOsm/L, Urinary osmolarity 35l mOsm/L, Urinary K+ 9 mg/dl, Blood sugar ll2 mgldL and BP of 150/90 mm Hg. Which of the following is the mnst probable cause for his hyponatremia?   (A) Cerebral salt wasting   (B) Diuretic induced   (C) SIADH   (D) Pseudohyponatremia
output: ['(C) SIADH <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Cerebral salt wasting  (B) Diuretic induced  (C) SIADH  (D) Pseudohyponatremia <> possible answers', '  A 50 years okl smoker and hypeensive was diagnose to have non-small cell lung carcinoma with brain metastases. He is on enalapril and hydrochlorothiazide for hypeension. On investigation, he had a serum Sodium 120 mg/dl|, Urinary Sodium ll0 mg/dl, Serum creatinine 0.8 mg/dL, Serum osmolarity 285 mOsm/L, Urinary osmolarity 35l mOsm/L, Urinary K+ 9 mg/dl, Blood sugar ll2 mgldL and BP of 150/90 mm Hg. Which of the following is the mnst probable cause for his hyponatremia? <> context']