Final answer:
The most suitable data type for a person's age, represented in years, is an integer because ages are whole numbers without decimal parts.
Step-by-step explanation:
When choosing a data type for representing a person's age in years, the most appropriate option is typically an integer data type. Ages are whole numbers and usually do not require decimals, making integers the optimal choice. For most programming scenarios, an integer can accurately represent ages, which typically fall within the data range integers support. An integer data type is the most suitable for representing a person's age in years, as they are whole numbers and do not require decimals. In most programming scenarios, integers accurately represent ages within the data range they support.