Final answer:
Kulula.com's customers are part of the business environment, which is influenced by economic, socio-cultural, and competitive factors.
Step-by-step explanation:
The customers to whom kulula.com offers its services are part of the business environment. This refers to the external factors that influence a business. One of these factors is the economic environment, which includes aspects like consumer purchasing power and economic stability. Other factors include the socio-cultural environment, which includes elements like consumer beliefs and values, and the competitive environment, which includes rival companies offering similar services.