In the timer program shown,when switch S1 is closed: 
A) the light turns on after 20 s and remains on.
B) the light turns on after 5 s and remains on.
C) the light turns on after 15 s and remains on.
D) the light turns on after 5 s,stays on for 10 s,and then turns off.
Correct Answer:
Verified
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