hello B let's read this question the question says which of the following is arsenic containing drug option a penelene option binel option C silvas and option D florum penicol okay key concept for this question is Dr what are drugs chemicals which are used to diagnose prevent and treat diseases chemicals he basically drugs Bist Paul stud buter EXP FNA okay less toxic arsenic for treatment of us for treatment of FIS structure structure basically is an anti why salvaron was basically used for treatment of spillis coming back to the question the question says which of the following is aring containing TR the correct answer for this question will be option C I hope you understood thank you and all the best