The correct answer is: keeping stress out of the conversation.
When Mrs. Franklin scolds Shea in front of the class, she is not practicing the communication rule of keeping stress out of the conversation. Mrs. Franklin is anxious about her evaluation, due to which she likely displaces her negative feelings on Shea, by scolding Shea. However, when Mrs. Franklin scolded Shea, she communicated in a stressful and manner, rather than a calmer and less emotional manner.