In the case of shift, it must be noted that the test should not be continued for more than how many seconds?

In the case of shift, it must be noted that the test should not be co

1.	In the case of shift, it must be noted that the test should not be continued for more than how many seconds?
A.	31-40min
B.	5-7sec
C.	30-55min
D.	10-15seconds
Answer» E.