Correct Answer: (c) Lentil, Sugarbeet, Wheat
Solution:Lentil, Sugarbeet and Wheat are crops that cannot be used for biofuel production. Biofuel is a fuel that is derived from biomass, that is plant material or animal waste. Sugarcane, Com Soyabean, Rapeseed, Jatropha are used for biofuel production. Biofuel is cost effective and alternative to petroleum.