​In the market for insurance,low risk customers are not served because

A) ​They do not like buying insurance
B) They are more costly to serve
C) Products designed to be attractive to them are also attractive to high risk types.
D) ​All of the above

Low risk customers are not served because the products that are designed to be attractive to them are also attractive to high-risk types. As a result, insurers do not find it profitable to offer insurance products to low-risk customers. Low-risk customers do generally like to buy insurance, and they are typically cheaper to serve. However, insurers cannot make a profit by offering them insurance products, as these products are also attractive to high-risk types who are more likely to file claims. Therefore, insurers prefer to focus on high-risk customers who are willing to pay higher premiums, which helps them offset the costs of claims.