Well, do you know your passcode? It should be the only reason for being disabled. Also, maybe you aren't logged in? That could be why...
Answer:
Try to click the center button layout.
Explanation:
Answer:
B) To package a repeated task as a function even though the task does not yield a value
Explanation:
The purpose of a function that returns "void" is to package a repeated task as a function even though the task does not yield a value. Since the function does not return any value, it control returns to the caller.