How to do following restore?

Database A;

One full backup finished at 10 am

one differential backup finished at 11am

one transaction log finished at 11:45 am

I need to restore database A to 11:30 am

So how I do restore:

1) Restore full backup at 10am nonrecovery + restore transaction(11:45am) stop at 11:30 am recovery

or

2) restore full backup at 10 am nonrecovery+ restore differential(11am) norecovery +restore transaction(11:45am) stop at 11:30 am recovery

1) or 2)?

What is relationship between differential backup and transaction log backup?

I know first transaction log backup with backup changes between transaction log backup time and full backup time

Then next transaction log backup will backup changes between it and its last transaction log backup. Correct?