When the physical product cannot be easily differentiated, the key to competitive success may lie in adding valued services and improving their quality. the main service differentiators are ordering ease, delivery, installation, customer consulting, maintenance, and repair.

The correct answer to the following question is Customer training .

Explanation:

When it is not easy to differentiate between the products, what business can do to get competitive advantage is to add some valued services with the product and improve the quality of the product. The service that can be added are order easing , customer training, customer consulting, deliver, installation, maintenance and repair.

Here customer training means providing the customers with necessary training and tools , which would help them in successfully using the product and services.

answer; ///(d); determining who competes most closely   with whom evaluating whether industry driving forces and competitive pressure favor some strategic groups and hurt others, and ascertaining whether the profit potential of different strategic groups varies due to the strengths and weaknesses in each groups respective market positions;

answer/// the grapefruit that guarantees you will loss five pounds a week;