Fact 1: Creating wood-free paper does not require cutting down trees.

Fact 2: For that, the player needs lumberjacks to cut down the trees.

Given the two facts above, answer the question "Creating wood-free paper does not require what?" with the following options: 
- scarce resources
 - patience
 - deforestation
 - testing
 - science
 - lumberjacks
 - Energy.
 - carbon dioxide


 

      lumberjacks   