Fact 1: Alight bulb is used for seeing in the dark.

Fact 2: And in the winter the nights are long and dark.

Given the two facts above, answer the question "a light bulb is used for seeing" with the following options: 
- in the morning
 - power
 - heat
 - at noon
 - electricity
 - heat energy
 - at night
 - in the daytime


 

       at night  