Can someone help with this answer, I took the test, I put C. Gloria is correct , and the school marked it wrong, if you look up the question on

Can someone help with this answer, I took the test, I put C. Gloria is correct , and the school marked it wrong, if you look up the question on google, it has the same answer and everyone is receiving 100% …. so if C is incorrect …. whats the correct answer? I do not normally question things but now I need to know

Gordon and Gloria are discussing the negative side effects of biomass utilization. Gordon maintains that the worst problem occurs when there is insufficient heat generated by biomass burning to fully neutralize toxins, which adds to air pollution. Gloria maintains that the worst side effect comes from growing row crops like corn and soy for biofuel production because farmers are deprived of arable land needed for growing food. According to your reading, who is correct?