Answer: option D
Reclamation of sanitary landfills occurs before the land fills is capped.
Step-by-step explanation:
Reclamation of sanitary landfills is a method use to expand the municipal solid wastes sanitary landfill capacity so as to avoid high cost of purchasing another land.
Sanitary landfills is an area of land where wastes is allow to decompose or degraded chemically, physically and biologically until it is safe.
This reclamation is done before the landfills is capped so as to avoid high cost of getting another land.