Question

you are researching endangered species. which would be the best source to use for your research? a news article about animals that are endangered an article in a medical journal about running a movie about dinosaurs

Explanation:

A news article about endangered animals is relevant to the research topic. A medical journal article about running is unrelated to endangered species. A movie about dinosaurs is also not relevant as it focuses on extinct species (dinosaurs are extinct, not endangered in the modern sense for the context of researching currently endangered species).

Answer:

a news article about animals that are endangered