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: Pharmacology
Which one of the following statements about phenytoin is accurate ? 
Select and explain. 
A. Displaces sulfonamides from plasma proteins, B. Drug of choice in myocionic seizures, C. Half–life is increased if used with phenobarbital, D. Toxicity may occur with only small increments in dose
D: Toxicity may occur with only small increments in dose
Answer: D: Toxicity may occur with only small increments in dose 
Explanation: None