Select all of the following reaction equations that correctly represent a weak base in water.
(A) CH3NH2 (aq) + H2O (l) OH (aq) + CH3NH3+ (aq)
B) HCOOH (aq) + H2O (l) H3O+ (aq) + HCOO- (aq)
(C) KOH (s) → K+ (aq) + OH- (aq)
D HI (aq) + H2O (l) → H3O+ (aq) + I (aq)
E N2H4 (aq) + H2O (l) OH (aq) + N2H5+ (aq)