When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?

NiO₂ + Hg → Ni²+ + Hg₂²+

A) 1, 1, 1, 1
B) 1, 1, 2, 1
C) 2, 1, 1, 2
D) 1, 2, 2, 1