medium · LSAT Logical Reasoning

If a piece of art is from the Renaissance period, it uses linear perspective. This painting uses linear perspective. Therefore, this painting is from the Renaissance period.

Which one of the following arguments contains flawed reasoning most similar to the reasoning in the argument above?

  1. If a vehicle is a sports car, it has a high-performance engine. This vehicle has a high-performance engine. Therefore, this vehicle is a sports car.
  2. If it is raining outside, the ground is wet. The ground is plainly not wet at all. Therefore, it is certainly not raining outside right now.
  3. Some old buildings are made of brick. This building is made of brick. Therefore, this particular building is itself quite old and historic.
  4. If a person is a professional athlete, they exercise regularly. John is indeed a professional athlete. Therefore, John exercises regularly.
  5. If a tree is an oak, it loses its leaves in winter. This tree is plainly not an oak. Therefore, this tree does not lose its leaves at all in the winter.

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