You are presented with the quiz "a light bulb is used for seeing where to step what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "alight bulb is used for seeing in the dark" and "evening had arrived quickly, and it was almost too dark for the old man to see where to step safely". 

So, what's the best answer to the question?


 

       safely    