Read the passage about the eruption of Mount Vesuvius. There had been noticed for many days before a trembling of the earth, which did not alarm us much, as this is quite an ordinary occurrence in Campania; but it was so particularly violent that night that it not only shook but actually overturned, as it would seem, everything about us. – Letter to Cornelius Tacitus, Pliny the Younger

Which question should be asked to verify that the source is credible?
- Does Pliny include emotions in this description?
- Is there evidence that supports Pliny’s description?
- Does Pliny share his perspective in this description?
- Is there relevant information in Pliny’s description?