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: Social & Preventive Medicine
A 30 yrs old female has sputum positive TB. Her child is 3 yrs old. What is the recommended chemoprophylaxis - 
Select and explain. 
A. INH 3mg/kg for 3 months, B. INH 5mg/kg for 3 months, C. INH 3mg/kg for 6 months, D. INH 5 mg/kg for 6 months
D: INH 5 mg/kg for 6 months
Answer: D: INH 5 mg/kg for 6 months 
Explanation: Ans is `d' i.e., INH 5 mg/kg for 6 months