Answer:
D. process focus, repetitive focus, and product focus.
Explanation:
A process is an activity that involves transforming resources into finished goods and services. This involves four basic strategies among which are process focus, repetitive focus, and product focus. The fourth one is mass customization which is very flexible to meet changing needs of the customers. Process focus is based on large variety and low volume whereas product focus involves high volume and low variety. Repetitive focus averages between process focus and product.