medium · GMAT Verbal

Which of the following arguments is most similar in its logical structure to the argument above?

1. If the company invests in high-speed robots, it will reduce its costs. The company reduced its costs. Therefore, it surely must have invested in robots.
2. If the company invests in high-speed robots, it will reduce its costs. The company invested in those robots. Therefore, it reduced its costs.
3. All birds have a pair of wings. An ostrich also has a pair of wings. Therefore, an ostrich must certainly be classified as a true bird species.
4. If it rains heavily overnight, the grass gets wet. The grass in the yard is not wet at all this morning. Therefore, it clearly did not rain at any point.
5. If the team wins the championship, the city will hold a parade. The team did not win the championship. Therefore, the city will not hold a parade.

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