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 of the following is second generetion H1? antihistaminic - 
Select and explain. 
A. Cetrizine, B. Promethazine, C. Cinnarizine, D. Pheneramine
A: Cetrizine
Answer: A: Cetrizine 
Explanation: Ans. is 'a' i.e., Cetrizine