hard · LSAT Logical Reasoning

The pattern of reasoning in the argument above is most closely paralleled in which one of the following?

1. If a sensor is functioning, the alarm will sound. The alarm did not sound. So the sensor was not functioning.
2. If a student studies, that student passes the exam. Sarah did not study at all. So Sarah will surely not pass.
3. If it rains overnight, the grass becomes wet. The grass is now wet. So it must certainly have rained earlier.
4. If a car has fuel in its tank, it will start. The car definitely started. So the car must still have fuel in it.
5. If a plant gets sunlight, it grows taller. The plant clearly grew. So the plant did not get any sunlight at all.

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