The correct answer is: C. 45 minutes.
ARME stands for “Automatic Route Memory Equipment”. It is a system that allows trains to automatically follow a pre-programmed route. The target time for ARME from double exit siding is 45 minutes. This means that the train should be able to travel from the double exit siding to its destination in 45 minutes, without any stops.
The other options are incorrect because they are not the target time for ARME from double exit siding. Option A is 20 minutes, which is too short. Option B is 30 minutes, which is too long. Option D is 60 minutes, which is too long.
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