When a magnesium bromide solution is mixed with a lead(II) nitrate solution, a precipitate forms. Choose the correct formula equation that represents this reaction: 
a MgBr₂(aq) + Pb(NO₃)₂(aq) - Mg(NO₃)₂(aq) + PbBr₂(s) 
b MgBr₂(aq) + Pb(NO₃)₂(aq) – Mg(NO₃)₂(aq) + PbBr₂(aq) 
c MgBr₂(aq) + Pb(NO₃)₂(aq) - Mg(NO₃)₂(s) + PbBr₂(aq) 
d MgBr₂(aq) + Pb(NO₃)₂(aq) - MgBr₂(aq) + Pb(NO₃)₂(s) 
e Mg₂+ (aq) + ₂Br (aq) + Pb₂+ (aq) + NO₃(aq) - Mg₂+ (aq) + NO₃(aq) + Pb₂+ (aq) + ₂Br (aq)