easy · GMAT Verbal Reasoning
A utility's new sodium-glass batteries store the same total energy as its lithium ones but occupy three times the floor area. The utility installs the sodium-glass units only at its rural substations, where land is cheap and plentiful, and keeps lithium at its urban substations.
Which of the following is most strongly supported by these statements?
- Sodium-glass batteries cost less per unit of stored energy than the utility's lithium ones.
- At least one factor in the utility's choice between the two battery types varies by substation location.
- The utility intends to phase out its lithium batteries entirely within just the next few years.
- Sodium-glass batteries are unable to store as much total energy as comparable lithium batteries can.
- Urban substations have no remaining room to install any additional batteries of either type whatsoever.
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