小蕾從未進行過轉換率最佳化，但她已迫不及待想馬上開始。 下列何者是她應優先執行的步驟？

The correct first step for someone new to conversion rate optimization (CRO) is to identify areas of opportunity through data and user feedback. This foundational step ensures that optimization efforts are data-driven and address actual user pain points or business goals, rather than assumptions. Without understanding where the problems or opportunities lie, any subsequent actions are likely to be misdirected. Creating test hypotheses based on personal preferences is incorrect because CRO should be guided by data, not subjective opinions. Discussing implementation with the development team is premature; you first need to know what to implement. A/B testing the homepage immediately is also premature, as you haven't yet identified specific issues or opportunities on the homepage that warrant testing.