How does Pliny’s treatment of Christians differ according to their social class?

How does Pliny’s treatment of Christians differ according to their social class? Having read Pliny’s letter to Trajan and the Emperor’s response, address the following questions:

1) How does Pliny’s treatment of Christians differ according to their social class?

2) Why would Trajan insist that anonymous accusations, like those discussed by Pliny, should not be used as evidence?

3) What do you conclude from this exchange about the relationship between religion and politics under the Roman Empire at this time?