客戶想要測試不使用 Cookie 的地理區域實驗。 以下何者為優點之一？

The correct answer is "不需要跨網站追蹤資料" (Does not require cross-site data tracking). This is a key advantage of experiments that don't rely on cookies, especially in the context of geographical testing. Without cookies, the experiment avoids collecting and relying on persistent identifiers that can track users across different websites, which aligns with increasing privacy regulations and user expectations. "適合大多數想要快速得到結果的客戶使用" (Suitable for most clients who want quick results) is incorrect because cookie-less methods might require more data or longer periods to achieve statistical significance due to the lack of persistent user identification. "需要收集個別使用者的資料來進行實驗" (Requires collecting individual user data for experiments) is incorrect; cookie-less experiments often focus on aggregated or contextual data rather than individual user profiles. "導入和執行都很簡單" (Simple to implement and execute) is also incorrect, as implementing robust cookie-less tracking and experimentation often involves more complex server-side logic or advanced fingerprinting techniques, which can be more challenging than standard cookie-based approaches.