Final Answer:
True. Gary has at least one sibling, implying the possibility of more than one.
Step-by-step explanation:
The statement "Gary has at least one sibling" is affirmed as true. This indicates that Gary is not an only child and has at least one brother or sister.
The assertion of having a sibling does not specify the exact number, but it establishes the presence of a sibling within Gary's family structure.
Understanding the significance of clear and unambiguous language is crucial in interpreting statements. In this context, the term "at least one" implies the minimum number of siblings Gary has, leaving room for the possibility of more than one sibling.