If you grimace in fear while taking a difficult exam, this facial expression is likely to cause * a. you to experience increasingly intense feelings of fear b. you to have less difficulty recalling the correct answers to the questions c. your blood sugar levels to decrease

a. you to experience increasingly intense feelings of fear

Explanation:

Grimacing in fear can increase the intense feeling of fear. The facial expression causes a ripple effect by increasing one's tension. The perception of the face shows the information or tells what is going on in the mind.

The student putting up a grimace of fear shows that the student is fearful in the mind, hence there is a tendency for the students fear to grow, since the exam is not likely to be less difficult.

Most times fear spikes up the blood sugar level even when one hasn't eaten.