The most likely reason the author included this sentence in the passage is: D. to establish that the condition of the Yellow River is connected to farming practices.
Drought can be defined as a period of time when a geographical region or area experiences lower precipitation and drier than normal atmospheric weather conditions that causes water shortage.
This ultimately implies that, drought is a phenomenon which is caused due to changes in weather patterns, but it can also be worsened by human activities.
Generally, any geographical area that is experiencing a drought need dams and water conservational devices.
In this scenario, we can infer and logically deduce that the most likely reason the author included this sentence in the passage is to establish that the condition of the Yellow River is connected to farming practices.
Read more on drought here: https://brainly.com/question/12686086
#SPJ1