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
True about mycoplasma - 
Select and explain. 
A. Obligate intracellular organism, B. Penicillin is effective treatment, C. Require cholesterol for growth, D. Have thick cell wall
C: Require cholesterol for growth
Answer: C: Require cholesterol for growth 
Explanation: None