Question: Upon receiving an LCLS Status Change Request with 'LCLS Connection Preparation', what action does the MSC Server take if the requested LCLS status is allowed?
Option 1: Send LCLS Status Update message to BSS with LCLS-Status IE set to 'LCLS Connected'
Option 2: Send LCLS-Connect-Control message to BSS with LCLS-Connection-Status-Control IE set to 'disconnect'
Option 3: Send LCLS-Connect-Control message to BSS with LCLS-Connection-Status-Control IE set to 'connect' and also send an LCLS Status Change Request Acknowledge back to the preceding/succeeding node
Option 4: Ignore the request if no prior LCLS-Notification message is received
Explanation: When the MSC Server receives an LCLS Status Change Request with 'LCLS Connection Preparation' and deems the status change allowable, it must initiate two actions: Facilitate Connection by sending an LCLS-Connect-Control message to the BSS to 'connect', and Acknowledge Request by sending back an LCLS Status Change Request Acknowledge to the initiating node, indicating acceptance.