Respuesta :
A. This is still a reliable source because it clearly cites scientific research
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hope it helps
Answer:
The correct answer will be option D.
Explanation:
A scientific study is a well-substantiated idea and opinion which is well supported with the experiments, observations and data.
In the given question the source is not reliable as the article published on encyclopedia cites only six studies from different journals about dog breeding which does not justify the 38 kg weight category of female Labrador retriever of Anna which falls into the range of males. Scientific research should have a large sample size to have a small margin of error and find more accurate mean values.
Thus, option D is the correct answer.