What is the operation hour of the USOPM on Saturdays?

The operation hours of the USOPM on Saturdays are set to 9 AM - 6 PM, making this option the correct answer. This time frame allows visitors ample opportunity to explore the museum and engage with exhibitions throughout the day.

While other options suggest varied hours, they do not align with the actual schedule for the USOPM on Saturdays. Understanding the correct hours is essential for planning visits effectively and ensuring guests can maximize their experience at the museum.