Marketing, therefore, focuses on the idea that customers want to buy goods and services that satisfy their specific needs and that they will buy from sellers who can deliver those goods and services. Thus, marketing consists of the production and distribution of products and services and involves three different concepts: market research, selling concept, and marketing strategy. Marketing thus is the art and science of bringing together the best of all possible elements present in the market so that the products and services are brought to the people who require them. Marketing, therefore, is one of the major factors responsible for making a firm popular and thereby contributing to its success and growth.