Choice "A" is correct. When there are fewer than 12 unsecured creditors, any one creditor who is owed $15,325 in unsecured debt or more may file an involuntary petition in bankruptcy.Choice "b" is incorrect. The fact that there are fewer than 12 unsecured creditors means that only one creditor is needed for the involuntary petition (as long as the creditor is owed at least $15,325 in unsecured debt).Choice "c" is incorrect. A debtor who is not paying debts as they become due is subject to being involuntarily petitioned into bankruptcy under the provisions of Chapter 11.Choice "d" is incorrect. When there are fewer than 12 unsecured creditors, any one or more of the creditors may file the involuntary petition, but the petitioner(s) must be owed in aggregate at least $15,325 in unsecured debt.