Reclamation of strip-mined land is difficult chiefly because
A. No plants will grow in the spoil banks formed by the heavy load of dangerous chemicals
B. There is no legal enforcement
C. Topsoil is mixed up and buried so topsoil must take time to develop again for plants to grow
D. Nobody can afford the minimum reclamation costs of about $1000 per acre
E. There are no subsidies that exist for mining, unlike other resource-based industries
Answer: C
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