【单选题】

·You will hear a talk presented by a reporter. This talk is about deceptive packing.·For each question 23—30 mark one letterA,

B、orC、for the correct answer.·After you have listened once, replay the recording. Bussinessmen usually change their products’ package for ______.
A、lowering the costs
B、improving quality
C、improving a product’s market position