The correct option is C Puente Hills Landfills, Los Angeles
The largest landfill in the world is Puente Hills Landfills, Los Angeles covering an area of 700 acres and is about 500 feet high. The Puente Hills Landfills terminated its operation in 2013. However, the biggest landfill in the world is Apex Regional Landfill, Nevada Las Vegas of about 2,2,00 acres.