What does the presence of wells and bathing areas in Indus houses suggest?

Correct answer: Attention to cleanliness and water facilities

Wells and bathing spaces show that many settlements invested effort in bringing water close to households and managing personal or domestic cleanliness. Along with drains and water channels, they indicate planning for water use, although they do not prove that every inhabitant had identical facilities or that hygiene was the only concern. These structures say nothing directly about complete knowledge of the script, warfare, or a purely hunting economy.