Under which condition is a person performing Ghusl required to delay washing their feet during the introductory Wudu?

Ghusl: Twelve Sunnahs, Etiquettes, and Recommended Baths

• If the water is extremely cold.
• If they are standing in a place where used water pools and collects.
• If they are performing Ghusl during the night.
• If they are fasting.