Which of the following chemical equation is balanced correctly?

A. C6H6 + O2 → 2CO2 + 3H2O
B. CS2 + 3CI2 → CCI4 + S2CI2
C. B2O3 → 2C → B4C + CO
D. CI2 + NAI → 2NACI + I2

The correct balanced chemical equation is:

D. CI2 + 2NaI → 2NaCl + I2