This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology, Subject name: Medicine
A 23-year-old homeless man is found to have consumed alcohol adulterated with methanol. He is started on treatment effective for minimizing the toxicity to methanol. Which of the following is the most likely explanation for the benefit of this treatment? 
Select and explain. 
A. enhances renal excretion of methanol, B. prevents biotransformation of methanol, C. combines to form a nontoxic polymer, D. changes the toxin's volume of distribution
B: prevents biotransformation of methanol
Answer: B: prevents biotransformation of methanol 
Explanation: Ethanol is the standard antidote for methanol. It inhibits the conversion of methanol to its toxic metabolite, formic acid, by alcohol dehydrogenase.