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What are the signs of the entropy change...

What are the signs of the entropy change `( +` or `-)` in the following`:`
`I.` A liquird crystallisation in to solid
`II.` Temperature of crystallises in to solid.
`III.` `2 NaHCO_(3)(s) rarr Na_(2)CO_(3)(s)+CO_(2)(g)+H_(2)O(g)`
`IV.` `H_(2)(g) rarr 2H(g)`

A

`underset(-)(I)" " underset(+)(II)" "underset(+)(III)" "underset(+)(IV)`

B

`underset(-)(I)" " underset(-)(II)" "underset(+)(III)" "underset(+)(IV)`

C

`underset(-)(I)" " underset(-)(II)" "underset(-)(III)" "underset(+)(IV)`

D

`underset(+)(I)" " underset(-)(II)" "underset(-)(III)" "underset(-)(IV)`

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