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: Dental
Isolite system is an advancement in: 
Select and explain. 
A. Advanced lignocaine syringe system, B. Isolation system, C. Light curing system having LED system, D. Bleaching for fluorosed teeth
B: Isolation system
Answer: B: Isolation system 
Explanation: Isolite:

Newer isolation device that provides illumination in addition to suction, retraction of tongue & cheek and an integrated bite block.
Retracts and protects the tongue and cheeks.
Delivers shadowless illumination throughout the oral cavity, continuously aspirates fluids and oral debris, and obturates the throat to prevent aspiration of instruments or other materials.

Ref: Fundamentals of Operative Dentistry, Summits and Schwartz, 4th edition, pg no: 188