All of the Following Are Problems Associated with Sanitary Landfills

All of the following are problems associated with sanitary landfills except

A) large quantities of potentially toxic fly ash.
B) landfills fill up too quickly so it is not a long-term solution to waste disposal.
C) leachate seeps through lining of landfills and contaminates groundwater.
D) methane gas accumulations create the possibility of explosions.
E) toxic chemicals such as heavy metals and pesticides are found in the leachate.