Which statement does not describe a disadvantage of producing synfuels compared to burning coal directly?
A. Producing synfuels requires mining 50% more coal.
B. Production and burning of synfuels releases more carbon dioxide than coal.
C. Synfuels have lower net energy yield than conventional coal.
D. Production of synfuels requires more water than the production of coal.
E. Supplies of synfuels are limited.
Answer: E
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