Vanessa crams for her anatomy and physiology final by staying up the entire night before the exam. ...

Vanessa crams for her anatomy and physiology final by staying up the entire night before the exam. What is a likely consequence of Vanessas actions?
 
  a. Vanessa will experience a brief surge of energy during the test followed by a prolonged crash phase.
  b. Vanessa will need to rest her eyes periodically during the exam or risk temporary vision impairment.
  c. Vanessa will likely perform significantly below her fullest potential because she decreased her capacity to remember the material.
  d. Vanessa will need to have at least two nights of normal sleep before experiencing normal mental functioning.