Which of the following choices is a possible explanation for the teacher’s use of a euphemism in the above situation?

A.
The teacher did not want to choose her words carefully.
B.
The teacher wants to bias the class against test taking.
C.
The teacher wants to soften the harsh reality of the class’s failure.
D.
The teacher wants to prepare the class for the next lesson by talking jokingly about this past lesson’s test.