Final answer:
For a story centered on newlyweds adjusting to life's changes, a Challenge pilot is the most suitable as it revolves around the characters facing and coping with significant life events.
Step-by-step explanation:
If your story is based on challenges around a major change, such as the experiences of newlyweds, the most appropriate type of pilot to use would be a Challenge pilot. A Challenge pilot focuses on the protagonist's journey through a significant life alteration or challenge, which in this case could be the adjustment to married life and its associated trials. This type of pilot is intended to introduce the main characters as they encounter and navigate the central conflict or issue which, throughout the series, will reflect the evolution of their circumstances and personal growth.