Final answer:
Channels of distribution are the controllable elements for an international marketer among the listed options. Distribution channels can be managed and tailored, while factors like geography, infrastructure, cultural forces, and technology level are typically beyond the marketer's control.
Step-by-step explanation:
The controllable element for an international marketer among the options provided is C. Channels of distribution. An international marketer can choose and manage channels of distribution, tailoring them to fit the needs of different markets, controlling the way their product or service is delivered to the customer. Unlike cultural forces or geography and infrastructure, which are generally fixed and outside the marketer's control, distribution channels can be directly influenced through strategic decisions and partnerships.
Technological advancements and globalization have led to increased competition, allowing consumers and businesses to connect via various platforms, such as business-to-business websites. Therefore, an adept marketer must strategically manage their distribution channels to maintain a competitive edge in the international marketplace. However, the marketer cannot control external factors, such as the level of technology or the cultural forces in different regions.