With crews working shifts that span 24 hours a day, what is the most important thing for Satya to keep in mind as she prepares her live talk that will be replayed to employees on other shifts

d. Look into the camera more than the live audience

Explanation:

It is best that Satya looks into the camera as the speech is being given because it will be replayed to other shifts. When it is replayed to those shifts, they need to get the impression that she is looking at them as she gives the speech.

This is not a necessity with the live audience because she is already in front of them and looking at the camera does not mean that she would not be looking at them based on the location of the camera. It is however, more important that she looks in the camera for the benefit of the next shifts.

there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants