Under the Supreme Court's ruling in AT&T Mobility LLC v. Concepcion (2011), which state-law doctrine was preempted by the FAA?
-
A
A California rule that found class arbitration waivers unconscionable in consumer contracts
-
B
A New York rule requiring a minimum cooling-off period before arbitration could commence
-
C
A Texas rule mandating that arbitrators be licensed attorneys
-
D
A Florida rule allowing courts to review arbitral awards for legal error