The nursing instructor realizes that the nursing student understands all the criteria necessary for developing expertise when making clinical professional judgments by identifying the following as being a barrier to diagnostic reasoning.
a) practice
b) time
c) seeing things as only right or wrong
d) knowledge
e) experience

c) seeing things as only right or wrong

Explanation:

According to my research on studies conducted by various medical professionals, I can say that based on the information provided within the question the instructor can make this realization if the student is seeing things as only right or wrong. This is because in the field of medicine you are dealing with people's lives, therefore every decision needs to be calculated before it's made in order to decide whether it is the right choice or not. A nurse cannot be indecisive.

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answer; /// i believe its the cochlea;