When the following skeletal equation is balanced under basic conditions, what are the coefficients of the species shown?
N²H⁴ +Br² ⟶N² +Br⁻
a) 1, 3, 1, 2
b) 1, 2, 2, 1
c) 2, 3, 1, 2
d) 2, 2, 1, 1