The domain of a relation r is the set of real numbers. x is related to y under relation r if ∣x−y∣≥2. Select the description that accurately describes relation r.

a) A relation where y is at least 2 units away from x
b) A relation where the absolute difference between x and y is less than 2
c) A relation where y is exactly 2 units away from x
d) A relation where the absolute difference between x and y is greater than or equal to 2