CLEAN : Jason Wu fashion show draws Hollywood A-li

The video features a brief introduction and greeting by Doctor Swartz, who acknowledges the audience with a simple 'alright? Thank you.'

What is the total duration of the segments mentioned?

• 10920 seconds

• 840 seconds

• 2580 seconds

• 3420 seconds

What is the significance of the phrase 'Thank you' in the context?

• It shows gratitude.

• It is a question.

• It is a command.

• It is an apology.