Answer:
Option C. Related diversification to acquire economies of scope by integrating vertically in order to acquire market power.
Step-by-step explanation:
The reason is that in the related diversification the company enters in a similar business which it has entered by investing in the raw material by manufacturing much of its own polypropylene fiber. Furthermore, it has integrated its operations vertically backward which means that the business has taken control of its input in manufacturing by investing in its customer's business.