A Science teacher divides six students in three groups (HTET Feb 2014) I. The members of first group tightly embracing each other. II. The members of second group are hand with each other. III. The members of third group are standing at distance from each other. What teacher intends to teach?

• A. The lesson of power in unity
• B. Social harmony
• C. Diversity of marine life
• D. Nature of solid, liquid and gas