In which of the following processes entropy increases? 

A. A liquid evaporates to vapour.

B. Temperature of a crystalline solid lowered from 130 K to 0 K.

C. 2NaHCO_3(s) → Na₂CO_3(s) + CO_2(g) + H₂O_(g)

D. Cl_2(g) → 2Cl_(g)

Choose the correct answer from the options given below: