Which choice most logically completes the text?

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Omar Asensio and colleagues used machine-learning algorithms to examine consumer reviews of 12,720 electric-vehicle (EV) charging stations in the US. They found that privately owned or managed charging stations at or near restaurants and convenience stores had relatively low proportions of negative reviews, while stations at or near car rental companies had significantly higher proportions of negative reviews. Additionally, stations at or near car rental companies tend to require consumers to pay full price to use them, while stations elsewhere often offer subsidized or even complimentary charging. Assuming that stations at different sites provide roughly equivalent levels of service, these results suggest that _______

EV owners are usually unaware of the fees for using charging stations.

EV drivers are more likely to visit areas with many restaurants and convenience stores than they are to visit areas with fewer such businesses.

charging stations located near car rental companies are more frequently visited than charging stations located near restaurants and convenience stores.

users who are offered a discount have lower expectations of the quality of charging stations than users who are not offered a discount do.