A drug store invests in an extended line of nutritional supplements and displays them around a staffed customer-service desk so that a trained nutritionist can help customers make decisions. Which of the following means of competitive differentiation does this example illustrate?
- Increasing use of technology to improve communications.
- Emphasizing specialization and face-to-face transactions.
- Providing better support after the sale.
- Improving merchandise assortment to better reflect market demographics.