My son answered e), but Scantron marked him wrong. Why?  Please show the steps. How should he deduce the answer? 

>1. A picture was taken in the Northern Hemisphere (e.g. Canada), featuring two skyscrapers. You can clearly see sunlight coming from the right hand side of the picture,  gleaming **just** the right side of these skyscrapers. *No sunlight whatsoever glistens their left side.* What direction was the camera facing?
>
>a) North  
>b) South   
>c) East  
>d) West    
>e) More information is needed to answer this question.