I believe the answer is B. Optimization because it means to make work more efficient but I might be wrong. Checking definitions, this one seems more logical.
I think it's better to have multiple folders because for say you have 6 school subjects but only have 1 folder how are you going to keep track with all 6 subjects in one folder ? You could use each folder for each subject which would save you a lot of time when it comes to getting out your complete work .You can have one folder such as "Workspace" and have multiple different sub-folders that relate that to "Workspace". Also if you store pictures in a folder, it might be a good idea to separate them into different sub-folders.
