Choice "A" is correct. Under the UCC Secured Transactions Article (Article 9) a financing statement must contain a general description of the collateral in which the security interest is being sought.
Choice "b" is incorrect. While an after-acquired property clause is permitted, it is not required.
Choice "d" is incorrect. A financing statement must include the creditor's name and address, but the financing statement need not be signed by either the creditor or the debtor.
Choice "c" is incorrect. A financing statement may provide for the location of the collateral, but such information is not a requirement.