You are presented with the question "a light bulb is used for seeing" and the following answer choices: 
- in the morning
 - power
 - heat
 - at noon
 - electricity
 - heat energy
 - at night
 - in the daytime

Now knowing that alight bulb is used for seeing in the dark and and in the winter the nights are long and dark, choose the best answer.


 

       at night  