Rearrange the sentences to make meaningful sentences

the Earth/ thing/ We/ to/ consider/ do/ environment/ protecting/ third/ because/ a/ for/ we/ priority/ need/ life.

• A. 
  We consider protecting environment the Earth a priority thing to do third because we need the Earth for life.
• B. 
  We consider the Earth protecting environment a priority thing to do third because we need for life.
• C. 
  We consider protecting environment a priority thing to do third because we need the Earth for life.
• D. 
  We consider environment protecting a priority thing to do third because we need the Earth for life.