Triceps pushups are a very challenging exercise for the back of the arms. Like traditional pushups, they challenge a variety of muscles in the body (not just the triceps)...what makes them different is your hand position on the floor. By using a narrow hand-placement, you can really target the triceps muscles.
However, according to (Kotler & Keller, 2006) the formal definition of marketing is an organizational function and a set of processes for creating, communication, and delivering value to customers and for managing customer relationships in ways that benefit the organization and its shareholders(Kotler & Keller, p.4).
Simply defined, marketing is the process by which you communicate the value of your products and services to consumers. Your primary challenge is to choose which consumers to communicate with and the best strategy for reaching them with your message. Differentiated and undifferentiated strategies each have their place in effective marketing.