【单选题】You are about to go onstage to give a presentation. Though you have prepared well, your hands have started to shake and your knees are feeling weak. What do you do?
A.
Take a deep breath, visualize your success and hold onto the lectern when you are onstage.
B.
Quickly find someone else to give your presentation.
C.
Call off the presentation.
D.
Go get a glass of water or something small to hold onto.