Read the sentence.

According to a study published in the American Bee Journal, pesticides can cause as much damage to bee hives as Varroa mites do.

What type of evidence is used to support the claim in this sentence?

logical, because the evidence is based on beekeepers’ experiences
logical, because the evidence is based on accepted truths
empirical, because the evidence is based on scientific research
empirical, because the evidence is based on examples