What Role Do Item Discrimination Values from an Item Analysis

What role do item discrimination values from an item analysis play in our use of classroom assessments?

A) They tell us whether or not items distinguish between high-scoring and low-scoring students.
B) They tell us whether or not each item assesses lower-level or higher-level thinking skills.
C) They tell us how many students in the class got each item correct.
D) They give students feedback about how well they did on different kinds of test items.