The preferred treatment option for primary syphilis is :: (A) Injection Benzathine pencillin 2.4 million units IM single dose, (B) Injection Benzathine penicillin 2.4 million units IM Once a week for 3 weeks, (C) Cap. Doxycycline 100 mg orally twice a day for 2 weeks, (D) Tab. Azithromycin 2 gin single dose
Answer is A. None