Final answer:
Option (D), The narrow scope in a mission from the provided options is 'real estate (vs. apartments)' as apartments are a specific subset of the broader real estate category.
Step-by-step explanation:
Among the options provided, the example of a narrow scope in a mission is D) real estate (vs. apartments). This is because 'apartments' refer to a specific type of real estate, while 'real estate' encompasses a wider range of properties, including land, residential, commercial, and industrial properties. Therefore, focusing exclusively on apartments presents a narrower scope than focusing on real estate in general.