Final answer:
The colonization attempt known as "the lost colony" refers to Roanoke, where the settlers disappeared and left behind the word "Croatoan" as a mysterious clue.
Step-by-step explanation:
The attempt at colonization often referred to as "the lost colony" is d. Roanoke. In 1587, Sir Walter Raleigh sponsored the establishment of a small colony on Roanoke Island, off the coast of present-day North Carolina. The colony consisted of 117 people and struggled to maintain a positive relationship with the local Croatan natives. The governor, John White, left to secure more supplies, and upon his return three years later, the colony had mysteriously vanished. The sole clue to their possible fate was the word Croatoan carved into a fence post. Despite various theories, the ultimate fate of the Roanoke colonists remains a historical mystery, contributing to its moniker as "the lost colony."