Question

however, hydroelectric power is not without problems. dams can affect the flow of rivers and cut off wildlife from their homes. and, not all environmentalists are fans of hydroelectric power plants—they do produce some pollution, including greenhouse gases.
the wave of the future?
taking the pros and cons into account, some states have decided to catch the water - power wave as they surf toward their energy futures. they rely on hydroelectric power as their main source of energy. but no matter where you live,
which idea does the author mean to suggest by using the underlined phrase on page 5?
some states have work to do before they can use hydroelectric power for their energy needs.
some states believe hydroelectricity will be a good choice for their long - term energy needs.
some states would like to avoid using hydroelectric power in the future.
some states like hydroelectricity because it connects them to water sports.

Explanation:

The underlined phrase "to catch the water-power wave as they surf toward their energy futures" uses a metaphor of "catching a wave" to show that these states are embracing hydroelectric power as a forward-looking energy option. The text also notes they rely on it as their main energy source, aligning with viewing it as a good long-term choice. The other options are inconsistent: the text doesn't mention unmet prerequisites, avoidance of hydroelectric power, or a link to water sports.

Answer:

Some states believe hydroelectricity will be a good choice for their long-term energy needs.