With no explanation, chose the best option from "A", "B", "C" or "D". 934 n.11, 74 L.Ed.2d 765 (1983) (“[T]he usual rule [is] that a stay is not ordinarily a final decision for purposes of § 1291, since most stays do not put the plaintiff ‘effectively out of court.’ ”); Miccosukee Tribe of Indians of Florida v. S. Fla. Water Mgmt. Dist., 559 F.3d 1191, 1194 (11th Cir.2009) (involving the grant of a stay and pointing out that “[ojrdinarily a stay order is not a final decision for purposes of § 1291”). By the same token, an order lifting a stay is also generally not a final decision that is appealable under § 1291. Appreciating this reality, the defendants argue that this Court has appellate jurisdiction pursuant to the collateral order doctrine. See Cohen v. Beneficial Indus. Loan Corp., 337 U.S. 541, 546-47, 69 S.Ct. 1221, 1225-26, 93 L.Ed. 1528 (1949) (<HOLDING>). Thus, we set forth the collateral order

A: recognizing the collateral order doctrine for the first time
B: recognizing the doctrine of collateral estoppel in agency proceedings
C: recognizing collateral attack on void order
D: recognizing doctrine
A.