All of them except for the 3rd sentence are correct :)
The yellow river provided fertile farmland.
1) to save time and money
2) to avoid mistakes that could result in a poor product
3) to maintain the standards and uniformity of a product
creating clear procedural texts can ensure that your workers will obey, saving time and money. creating clear procedural texts can guarantee your workers will avoid making mistakes that could result in poor products because they will understand the rules and guidelines if they read a clear procedural text. This supports the third option as well.
