C
D is the old way.
A they have not done yet
B not even a thing
In Microsoft Outlook, there are differences between appointment and event. Appointment is defined as <em>an activity that you schedule in your calendar which does not involve other people.</em> Appointments can be scheduled to a certain duration in a day. Event is defined as <em>an activity that you do with other people which lasts from 24 hours to longer. </em>
Thus, from these descriptions, the best answer to the question is (C) appointments have a start and end time of day, and events do not.
This is a little tricky. I would say reserve. It would help to know what programming language and class this is for because a lot of times when you create an array variable the memory is put onto the stack and you as the programmer do not reserve memory space. Now on the other hand, if you are programming in C and you want to create an array variable and put it on the heap then you would reserve memory space on the heap.
It doesn't say what Technician B thinks, but I can tell you what the camshaft does and then you can decide who is right on your own. The camshaft is little metal rounded triangles above the piston that times when the intake and exhaust valve open and close.
Technician A is very wrong, the camshaft doesn't do that.
