Imagine That You Are Looking at a Printout from an Electroencephalograph

Multiple Choice

Imagine that you are looking at a printout from an electroencephalograph and you see a change from fairly short waves that are close together to waves that are tall and farther apart.What could you infer has happened to the person whose waves have been recorded

A)  She fell asleep. 
B)  She is having a seizure. 
C)  She is studying. 
D)  She is experiencing anxiety.