Final answer:
The subject of this question is Geography, and the correct answer is Āliapa'akai (option C).
Step-by-step explanation:
The subject of the question is Geography.
This question is asking about a crater lake on the south shore of Kaua'i. Among the given options, the correct answer is Āliapa'akai (option C).
References to volcanic activity and the potential departure point for Pele and her clan point to the uniqueness and significance of Āliapa'akai as a volcanic lake on Kaua'i.