Final answer:
Waikīkī had many streams and ponds a century ago, but some were re-routed or disappeared over time. However, there were freshwater resources in the past despite being a leeward area.
Step-by-step explanation:
In examining old and newer maps of Waikīkī, it was noted that the area had many streams and ponds a century ago, and over time, some streams were re-routed or disappeared. Additionally, many ponds disappeared as well. However, it is not accurate to say that there were no freshwater resources in the past because Waikīkī is a Kona or leeward area, which means it does have freshwater resources. Therefore, the correct answer is option C: Because Waikīkī is a Kona or leeward area, there were no freshwater resources in the past.