Select all of the double replacement reactions.
A. CaO+CO, CaCO,
B. Na₂CO3 → Na₂O + CO₂
c. KCl + AgNO3 → AgCl + KNO3
D. Cu + Ag (NO3)₂ → Ag+ Cu(NO3)₂
E. H₂SO4 +2NaOH → Na₂SO4 + 2H₂O
C