Alexis Is Riding Her Bicycle to School One Day and Slides

Alexis is riding her bicycle to school one day and slides on some loose gravel at the bottom of a hill. Her bike flies out from under her and she loses consciousness. At the
Hospital, Alexis does not seem oriented to the situation and cannot remember even riding her bike let alone falling. The doctors wish to take pictures of the structure of her brain
To determine whether or not there are injuries. To do this, they use a(n) _.

A) chemical stimulation technique
B) computerized axial tomography (CT) scan
C) positron emission tomography (PET) scan
D) electroencephalogram (EEG)