Which Method of Perfection Will Provide the Best Protection Against

Which method of perfection will provide the best protection against all claims to the debtor's collateral?

A) filing a financing statement in the proper office, in the proper county, and in the proper state where the transaction occurred, and where the collateral is located
B) filing a proof of claim in the proper office, in the proper county, in the proper state, where the transaction occurred and the collateral is located
C) taking physical possession of the collateral
D) a purchase money security interest
E) regularly advertising the existence of the lien in a local newspaper of general circulation.