which reaction below is a neutralization reaction?

A. Na2SO4+SrCi----> 2 NACl+SrSO4
B. Hbr+KOH-->KBr+H2O
C. Mg+Cu(NO3)2+Cu
D. CaO(s)+CO2(g)----->CaCO3(s)

B. Hbr+KOH-->KBr+H2O