Statements:
Only a few Crayon is Pastel
All Crayons are Wax
Some Pastel is Polish

Some Wax is not Pastel: Only a few Crayon is Pastel means some Crayons is Pastel and some Crayons is not Pastel. All Crayons are Wax. Thus, the Wax which is Crayon is not Pastel. So, conclusion I follows.
Some Crayon being Polish is a possibility: There is no direct relation between Crayon and Polish. Thus, there is a possibility of some Crayon being Polish. So, conclusion II follows.
Hence, Both conclusions I and II follow.