Answer:
so in my understanding we select 4?
this is the answer for when i select 4
1.) it led to the development of new forms of irrigation
2.) shrinking farms were unable to support large cities
3.) it reduced the amount of farmable land.
4.) It benefited farmers by eliminating monsoon flooding.
the wrong answer is it caused people to change the types of crops they planted
Explanation:
External criticism is very important when it comes to analyzing data, because as a researcher it is possible to get too "close" to the data, in that one can stop being objective and start looking for ways to match the data to the desired results.
Pretty sure it's B
Hope it helps