The correct answer is letter <span>A. dedicated. </span><span>The question talks about the Unit 7 of Lesson 12
Unit Checkpoint: Life Stories, Part 1. It describes the scientists as </span>dedicated. Scientists are mostly dedicated to the things that they are doing because whatever the output of their experiments are later be used.
Activists have coined the slogan “toilet to tap” to discourage the use of wastewater.
<u>Explanation</u>
<em>Toilet-to-tap or direct potable reuse is the future of potable water wherever we have acute water shortages but we still have a perception issue to resolve.</em>