Answer: A. Demographic factors.
Explanation: Customer environment intelligence is a term used often the marketing of products or services to evaluate or analyse the level of intelligence of the Customer environment. This is done sometimes by marketers when releasing a new product or service to the market.
Customer environment intelligence deals with Demographic factors which includes the socioeconomic factors such as AGE,SEX,INCOME LEVEL, LITERACY LEVEL,BIRTH RATE,DEATH RATE,POVERTY RATE etc.