In water, 1 mol of Cu(NO3)2 (aq) will dissociate into which ions?

Group of answer choices
A. 1 mol Cu2+ (aq) and 2 mol NO3− (aq)
B. 1 mol Cu2+ (aq) and 1 mol N5+(aq), and 1 mol O2−(aq)
C. 1 mol Cu2+ (aq) and 1 mol NO3− (aq)
D. 1 mol Cu2+ (aq) and 2 mol N5+(aq), and 6 mol O2−(aq)