Which Statement Provides the MOST Compelling Reason to Devote Resources

Multiple Choice

Which statement provides the MOST compelling reason to devote resources to study cellulose-degrading enzymes?

A) Humans could use cellulose as a food source.
B) Biomass could be converted to crude oil under high pressure.
C) Symbiotic microorganisms in digestive tracts could be used as treatments in some GI tract diseases.
D) Biomass could be converted more easily to bioenergy.
E) None of the answers is correct.