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: Microbiology
Peptidoglycan layer of cell wall is thicker in: 
Select and explain. 
A. Gram positive bacteria, B. Fungi, C. Gram negative  bacteria, D. Parasites
A: Gram positive bacteria
Answer: A: Gram positive bacteria 
Explanation: Differences between Cell Wall of Gram positive and Gram negative bacteria