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A bank in Luoyang of Henan province figured out a creative way to use worn-out banknotes – to fuel the generator.

With low water content and high heat value, a ton of worn-out banknotes can generate 660 KWH of electricity. Fueled by this new biomass energy, Henan province produces 1.32 million KWH of electricity a year, equivalent to the capacity of 4,000 tons of coal.

Traditionally, worn-out banknotes are burned or used in papermaking.

Why are worn-out banknotes a good fuel?

A. They have low water content and high heat value

B. They are made of paper

C. They are flammable

答案：A