Answer:
A.
Step-by-step explanation:
The article titled Water Efficiency for Water Suppliers is an article published on EPA, an official website of the United States. In the article, the department talks about effective strategies to apply to save water.
The article is divided into several sections. The section "Supply-Side Strategies for Water Suppliers" contributes to the structure and organization by explaining how accounting for water can be an essential step towards achieving water sustainability.
Therefore, option A is correct.