Which, If Any, of the Following Processes Is Spontaneous Under $\rightarrow$

Which, if any, of the following processes is spontaneous under the specified conditions?

A) H₂O(l) $\rightarrow$ H₂O(s) at 25 $\degree$ C
B) CO₂(s) $\rightarrow$ CO₂(g) at 0 $\degree$ C
C) 2H₂O(g) $\rightarrow$ H₂(g) + O₂(g)
D) C(graphite) $\rightarrow$ C(diamond) at 25 $\degree$ C and 1 atm pressure
E) None of these choices is spontaneous.