(a) Effective segmentation variables that can be referred to are: geographic range, age, occupation, gender, income level, etc.

(b) Regional competitors in the selection of the target market You need to understand the other competitors in a certain area of the main target groups, understand each other's strengths and weaknesses, as much as possible to avoid the front, attack their weaknesses to develop the target market selection. The target market selection of the attack on its weaknesses.