Which is the most suitable framework for testing an application that has been distributed across three different cloud systems?

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The most suitable framework for testing an application that has been distributed across three different cloud systems is the Cross-browser testing framework. Cross-browser testing framework allows testers to test web applications across multiple browsers, devices, and platforms simultaneously. This framework can help ensure that applications perform consistently across all three cloud systems and provide accurate results. Additionally, this framework can help identify and troubleshoot any issues encountered during the testing phase, thus improving the overall quality of the application.