Answer:
opportunity
Step-by-step explanation:
In the scenario being mentioned, Serengeti has recognized an external market opportunity. This is when a company identifies a product/service that is potentially wanted or needed by consumers but is not being already supplied by other companies. This allows the identifying company to produce and provide that service, thus filling a niche that will generate large sales numbers due to them being the only providers. Which is what Serengeti wants to do with their sunglasses for fishing.