Q. A glass tumbler containing ice shows droplets of water on the outer surface because-

• (A) The outer surface of the tumbler shows hygroscopic effect
• (B) Water from inside oozes out through the wall of the tumbler
• (C) The moisture in the air on coming in contact with the cold surface of the tumbler condenses in the form of droplets of water
• (D) (A) And (B) both