The sentence that would provide the best conclusion for the paragraph is:
The description from the text shows that the project was not a very easy one. Here, we see that a lot of effort was put into the project. Also, the project spanned about 100 years before it reached its conclusion. The longer routes that were plied by the ships made the task even more difficult.
A fitting conclusion is one that would summarize the nature of the Panama canal project. The option that provides this kind of exact description is the first option selected above.
Learn more about the conclusion of a text here:
https://brainly.com/question/12809344
#SPJ1