They can do different surgery on people. One is called cataract total and hip replacement surgery which is what can be expected
A. Small impurities can cause big changes in the color of a mineral.
Answer: Relationship marketing
Explanation:
Spotify by using relationship marketing tries to build a relation with its users so that it is able to know their interest and provide the best of its services. In this way spotify is able to grab the attention of many people and can spread its market overall by providing the best of its services.