During summer, Boojho carries water in a transparent plastic bottle to his school. One day he left his bottle in the school. The bottle still had some water left in it. The following day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to<br><b>(a)</b> boiling and condensation<br><b>(b)</b> evaporation and saturation<br><b>(c)</b> evaporation and condensation<br><b>(d)</b> condensation and saturation