Final answer:
A fact about a used truck can be verified through evidence, such as whether 'This truck has four-wheel drive'. This statement is factual and can be objectively confirmed.
Step-by-step explanation:
A factual statement about a used truck would be one that can be verified through evidence or specific information about the truck's features or condition. Among the given choices, the fact would be: This truck has four-wheel drive. This is factual because it can be objectively confirmed whether the truck has four-wheel drive or not.
The other options such as 'This truck is the best truck on the lot', 'This truck will catch everyone's attention', and 'This truck will probably run another hundred thousand miles' are subjective statements or predictions that cannot be confirmed as fact without further evidence or are based on opinion rather than a verifiable characteristic of the truck.