Item discrimination is an important aspect of test item analysis. Which of the following items best represents high discrimination?
A. An item that most high scorers answer correctly and most low scorers answer incorrectly

B. An item that both high and low scorers answer randomly

C. An item that most low scorers answer correctly and most high scorers answer incorrectly

D. An item that 50% of all scorers answer correctly, regardless of their overall score

Choose the correct answer from the options given below: