Which of the Following Is an Example of How the Technological

Which of the following is an example of how the technological environment might affect marketing management?

A) A manufacturer uses a computer to send orders directly to a supplier's computer.
B) A retailer installs a computerized checkout scanner to replace a manual cash register system.
C) A firm develops a substitute for saturated fat in manufactured foods.
D) All of these are examples of how the technological environment might affect marketing management.