Answer :
The ability to reason well is necessary for modern workers because c. They will often have to solve problems with limited information.
In modern factories each worker has a determined task or is specialized in a specific job. For example, imagine that you have a puzzle, in modern factories there is a single worker for each piece of the puzzle, and they don't know the big picture but they should be able to find the other pieces that connect with their own by using their reason. This is why, the right answer is option c, they will often have to solve problems with limited information.