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
A protoplast is best characterized as a bacterial cell: 
Select and explain. 
A. With a cell wall but free of a capsule, B. Containing a cell wall and a capsule, C. Free of a cell wall and a capsule, D. Uniquely sensitive to penicillin
C: Free of a cell wall and a capsule
Answer: C: Free of a cell wall and a capsule 
Explanation: None