The answer is A because the dashes are placed in the correct places. The other options are close but not accurate.
The claim is usually defined as your belief, like what you think it is. Example: I believe that all spiders are bad, but on the other hand... something like this i think. I hope this helps you.
Answer:
Sugar production requires a great deal of workers.
Explanation: In multiple passages in the paragraph, we can see that the author puts emphasis on the number of workers:
"The only way to make a lot of sugar is to engineer a system in which an army of workers swarms through the fields, cuts the cane, and hauls the pile to be crushed into a syrup that flows into the boiling room. There, laboring around the clock, workers cook and clean the bubbling liquid so that the sweetest syrup turns into the sweetest sugar. "
Thus, we can deduce that most likely answer is: Sugar production requires a great deal of workers.
(Hope this helps)