Final answer:
The native language of a tourist is an example of nominal scale data because it is categorized based on names or labels without quantitative value or order.
Step-by-step explanation:
The native language of a tourist would be an example of nominal scale data in a statistical context. The nominal level of measurement is used for data that is categorized based on names, labels, or qualities without any kind of quantitative value. This type of data cannot be ordered nor can it be meaningfully used in calculations. In the case of nominally measured data like a tourist's native language, each category is unique and does not provide information beyond being a category marker. Therefore, the correct answer would be d. Nominal.