Let's go through each option and analyze why they are not the best choices for maximizing process capacity: Explanation: A. N = 300: Option A results in a setup time to processing time ratio of 1/5. While this is a relatively low setup time, it is not the best choice compared to other options because it does not maximize the batch size while keeping the setup time small relative to processing time. B. N = 250: Option B results in a setup time to processing time ratio of 6/5, which is higher than the ratio in option D. This means that more time is spent on setup relative to processing time, making it less efficient than option D. C. N = 200: Option C results in a setup time to processing time ratio of 3/2. While it's better than options A and B, it's still not as efficient as option D, where the ratio is 2/1