Answer: A - Market development
Explanation: Marketing development is a marketing strategy used by businesses to penetrate new markets with their products.
There are different types of market development and they are:
1. Price: new prices are offered for the product to attract new customers/consumers to the product thereby increasing income.
2. Distribution: The distribution of the product through new channel will aid the development of the product in the new market.
3. Product development: the development of a new product will help penetrate the new market as the product is new and customers might like to try it out.