With no explanation, chose the best option from "A", "B", "C" or "D". or (B) the final order in a proceeding under section 2255. (2) A certificate of appealability may issue under paragraph (1) only if the applicant has made a substantial showing of the denial of a constitutional right. (3) The certificate of appealability under paragraph (1) shall indicate which specific issue or issues satisfy the showing required by paragraph (2). 2 . We decline to address whether a COA that fails to specify the issue or issues for appeal may nevertheless suffice to confer jurisdiction on this Court under 28 U.S.C. § 2253(c), or whether, in certain circumstances, we may address the merits of a petitioner’s claims despite their having been brought to the attention of the Court of Appeals by a defective COA. Cf. Soto v. United States, 185 F.3d 48, 52-53 (2d Cir.1999)

A: holding that summary judgment order that does not dispose of all claims between parties does not confer appellate jurisdiction because it is not a final decision under 28 usc  1291
B: holding that under 28 usc  2253c1 certificate of appealability may issue only if the applicant has made a substantial showing of the denial of a constitutional right
C: holding that a certificate of appealability issued without meeting the substantial showing of the denial of a constitutional right requirement nonetheless suffices to confer appellate jurisdiction quoting 28 usc  2253c2
D: holding that appellate jurisdiction is limited to the issues contained in the certificate of appealability
C.