With no explanation, chose the best option from "A", "B", "C" or "D". under either standard. We first note that revocation of Marston’s supervised release was mandated by § 3583(g) because Marston violated an express condition of supervised release by being convicted of a drug possession crime punishable by more than one year. See § 3588(g). Section 3583(g) does not invoke the sentencing factors of § 3553(a) or the limits imposed by the first clause of § 3583(e). See § 3583(g); United States v. Giddings, 37 F.3d 1091, 1095 (5th Cir.1994) (noting that a court need not consider § 3553(a) when revocation is mandated by § 3583(g)). Marston fails to show that it is “clear or obvious” or “obvious under existing law” that a sentence imposed when revocation is mandatory must be limited by § 3583(e). Cf. United States v. Larison, 432 F.3d 921, 923 (8th Cir.2006) (<HOLDING>). In addition, Marston asserts that the

A: holding that a sentencing court is required by 18 usc  3583g to revoke the defendants term of supervised release  unless defendant could come under the exception in 18 usc  3583d
B: holding that the district courts sentencing decision was not constrained by the factors specifically enunciated in 18 usc  3583e where revocation was mandated by  3583g
C: holding that when revocation  is mandatory under 18 usc  3583g the statute does not require consideration of  3553a factors
D: holding that a district courts failure to consider the 18 usc  3553a factors was plain error relying on gall
B.