Answer:
Option D Skimming strategy followed by penetration strategy
Step-by-step explanation:
The reason is that the when the product was new in the market, it was reflecting the high quality which was due to newest technology so the company set a high price to reflect a high quality product and this strategy is skimming strategy. When the competitors entered the market the company set a lowest price to increase its profit by satisfying the needs of customers at large. This bulk production gave economies of scale to Excelsior Corp. so the company set a lowest price to compete internationally as well as domestically. So the lowest price charged to customers due to economies of scale (Competitive advantage) is penetration strategy.
So the right answer is option D.