I originally picked C and didn't pick D - can someone confirm my rationale for why C is wrong and D is right?

C - Mentions that "very low" blood sugar levels could cancel out the high cholesterol levels, but the residents have normal blood sugar levels, so this is super irrelevant. Seems like LSAT is banking on fast and undetailed reading

D - If the residents have a genetic predisposition against vascular blockage, then that might explain why even with high cholesterol levels, they may have a counteracting force against the cholesterol levels

#help