Which points are 3.5 units apart?

A.(7.5, 1.2) and (7.5, –2.3)

B.(7.5, –3.5) and (7.5, 3.5)

C.(7.5, 1.2) and (7.5, 2.3)

D.(7.5, –3.5) and (7.5, 7)