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You are testing a system that is used in motor vehicles to warn the driver...

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You are testing a system that is used in motor vehicles to warn the driver of an obstacle when re-versing. Output is provided by a series of LED lights (green, yellow, and red), each illuminated based on clearly defined conditions.

The following summary describes the functionality:

•Object within 10 metres, green LED lit.

•Object within 5 metres, yellow LED lit.

•Object within 1 metre, red LED lit.

•Setting sensitivity mode to "ON" will result in only the red LED being lit when the object is within 1 metre.

The following decision table describes the rules associated with the functioning of this proximity warning system:

Which intended functionality is tested by Rule 5 in the decision table?

A.

Object is within 5 metres of the vehicle and the sensitivity mode is switched "off", resulting in the yellow LED being lit.

B.

Object is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in the yellow LED being lit.

C.

Object is within 5 metres of the vehicle and the sensitivity mode is switched "off", resulting in no LED being lit.

D.

Object is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in no LED being lit.

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