ReadonlyaacReadonlychallengesThe radio options the picker offers; empty when the response carries none.
ReadonlypreselectedThe challenge the picker preselects — the selection state's initial (observed: the server preselects WhatsApp). Present when the options reference exactly one selection state that names a value.
ReadonlyresponseReadonlyselectionserver_params of the picker's Continue action, verbatim (context_data,
device_id, and the QPL marker/instance ids the action issued). Echoed by
AccountRecoveryBloksSelectChallenge as its server_params.
The account-access-context token from the dialog's Continue action
server_params(issued in the same LRR context), chained into the selection and code-submissionclient_input_params.aac.