Refer to the given set-ups (i-iv) and select the correct option regarding them.

Options

A. Blloons of set-ups (ii) and (iii) will inflate due to expansion of air.
B. Balloon of set-up (iv) will deflate due to expansion of air.
C. Balloon of set-up (i) will inflate due to expansion of air. Balloon of set-up
D. Balloon of set - up (i) will deflate due to contraction of air whereas balloons of set-ups (ii), (iii) and (iv) will inflate due to expansion of air.

Explanation

Air expands on heating. The air present in the bottle in hot water in set-up (i) will gain heat and expand. Thus, causing balloon to inflate.