Answer: line extension
Step-by-step explanation:
The action whereby the company plans to introduce new products in the market within its existing product category is referred to as line extension.
Line extension occurs when the brand name for an established product is used for a new item that is in same product category. This can be in form of added ingredients, colors, new flavors etc. An example is a manufacturer of soft drink who adds "apple flavor"manufacturer to its existing "orange flavor"