阿貝一直在研究什麼因素能讓注重使用者需求的組織展現出色成效，在此期間，他瞭解所有成員都應發揮所長，持續改善使用者體驗。 在持續改善使用者體驗的過程中，行銷人扮演何種角色？

The correct answer emphasizes the marketer's direct role in executing tests on advertising platforms and using the results for improvement. This aligns with a continuous improvement mindset focused on user experience, as marketers are uniquely positioned to interact with and analyze user behavior data from campaigns. The other options describe important but secondary or supporting roles. "Supporting and encouraging relevant personnel to test and providing a sufficient budget" is a managerial or strategic role, not the direct testing role of a marketer. "Tracking measurable performance indicators and sharing data with various teams" is a crucial analytical task but doesn't encompass the active testing and improvement aspect. "Coordinating with developers to create testing programs to evaluate website and application improvements" is a collaborative role, but the marketer's primary domain for direct testing and improvement lies within advertising platforms.