Read the passage. (1) State leaders must ensure the safety of all citizens by stopping the construction of landfills. (2) Piles of garbage in an area close to homes can cause harmful diseases. (3) My uncle lived very close to a landfill and recently became very ill. (4) I am certain that many of his neighbors have also suffered due to the harmful nature of the landfill. What is the most accurate analysis of the reason presented in the second sentence