Read the following excerpt from a US court opinion:
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26-acre tract. 10 . If anything, Rubarts may lend support to an estoppel defense by the Dearings. See 896 F.2d at 112. The Dearings assert that Perry is estopped from asserting his homestead rights to the 26-acre tract the first time in their reply brief to this court. Because "an appellant’s original brief abandons all points not mentioned therein,” and the argument has not been fairly presented to the bankruptcy court, we decline to consider this new argument. Piney Woods Country Life School v. Shell Oil Co., 905 F.2d 840, 854 (5th Cir.1990)(quoting Nissho-Iwai Co. v. Occidental Crude Sales, Inc., 729 F.2d 1530, 1539 n. 14 (5th Cir.1984)). Accord City of Abilene v. EPA, 325 F.3d 657, 661 n. 1 (5th Cir.2003). 11 . See White v. Stump, 266 U.S. 310, 313, 45 S.Ct. 103, 69 L.Ed. 301 (1924). 12 . The affidavit itself does not contain
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What is the most suitable continuation to the opinion? Your options are:
A. holding that the relevant time of inquiry is the date of the filing of the complaint
B. holding that the right of the debtor to claim property as exempt is generally determined on the facts as they exist on the date of the filing of the petition
C. holding that facts as they existed on the date of the original bankruptcy petition not on the date of conversion from chapter 13 to chapter 7 bankruptcy applied
D. holding that the determination of whether the debtor is using real property as his principal residence is made as of the petition date for the purposes of section 1322b2
E. holding that a debtors entitlement to an exemption under  522d1 is determined as of the filing date of  a bankruptcy petition
Reply with [A, B, C, D, E] only.