Answer:
Option B Riva Inc. is a luxury brand that derives 90 percent of its revenues from its apparel line and 10 percent of its revenues from its premium furniture business unit.
Explanation:
The reason is that the dominant business is the one which earns above 75% within a single category of business line so here we only see Riva company one of the most dominant business earning 90% of revenue within the same category so the right option is option B.