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
The following phenomenon is responsible for antibiotic resistance in bacteria due to slime production- 
Select and explain. 
A. Co-aggregation, B. Biofilm formation, C. Mutation evolving in altered target site for antibiotics, D. Mutation evolving a target bypass mechanism
B: Biofilm formation
Answer: B: Biofilm formation 
Explanation: None