The following description of the performance parameters of line fiber quality monitoring, which is wrong?

The following description of the performance parameters of line fiber quality monitoring, which is wrong?
A . Increasing the pulse width will increase the duration of laser emission, that is, increasing the injected energy, and a larger dynamic range can be obtained, but an increase in pulse width will result in a larger blind zone.
B . The total optical fiber loss will affect the actual detection distance. The dynamic range of the same detection mode is fixed. The greater the total optical fiber loss, the smaller the detectable distance.
C . The width of the light pulse emitted by the detection in different modes is different, and the pulse width affects the separation accuracy and the monitoring distance. The larger the pulse width, the larger the dynamic range, the longer the test distance, and the higher the ranging accuracy.
D . The line fiber quality monitoring function adds up the results of multiple measurements and averages them to improve the monitoring accuracy. The actual time from the start of the detection to the return of the detection results by the software will be longer than the set "detection time".

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Answer: C