The assumption made by Dr. Lowe that Bryna was not taking class seriously while unaware that her mother is sick means Dr Lowes is making the fundamental attribution error
Fundamental attribution error is the tendency to link an actions to someone's character or personality because of their behavior to external situational factors outside of their control.
The external situational factors that Dr Lowes failed to known is that Bryna mother is sick, thus, affecting her punctuality and seriousness with study.
Therefore, the answer is fundamental attribution error.
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