Using information to design a marketing strategy to acquire/retain clientele is known as: ) behavioral targetingb) customer value managementc) permission marketingd) terminal marketinge) customer relationship management

Customer relationship management

Explanation:

Customer relationship management is a strategy used in most organisation    in which official make plan to retain their customers. They analyse the data about the customer, their professional history, their gross profit, nature of business etc. These all process help to boost the growth of company to the next level.

The right answer for the question that is being asked and shown above is that: "Most South Vietnamese helped the Viet Cong and North Vietnamese." the waging war in Vietnam difficult for U.S. soldiers because Most South Vietnamese helped the Viet Cong and North Vietnamese.