Use the passage to answer the question.
Within three years, two-thirds of the world’s population is expected to face water scarcity. Since showering accounts for nearly one-fifth of all residential water use, one way that we all can help to mitigate this problem is by installing low-flow showerheads. While the decreased flow can be something that requires acclimating to, anyone will agree that saving nearly 50 percent off your water bill—as well as saving the planet—is a welcomed change.
A student is developing an argument to support this claim. Which bias would the student need to address in order to support this claim?