Answer:
The environmental issue that the text identifies is B. a decrease in the population of fish, specifically steelhead.
Step-by-step explanation:
The article states that the Washington Department of Fish and Wildlife is closing the coast to recreational steelhead fishing due to the low returns of steelhead in 2021 and the expectation that returns will be even lower in the future. The Quileute Tribal Council also closed its fisheries in response to the same issue.