What are the three layers of the sun atmosphere

In which part of a professional email should you try to be brief, but highly descriptive?

Negative methods of behavior correction include all but this: sarcasm verbal abuse setting an example for proper behavior humiliation

Technician a says that a new replacement part is always good. technician b says that sometimes recent repair work will be the cause of a complaint. who is correct? a. both technicians a and b b. technician a c. technician b d. neither technician a nor b