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Computers are ubiquitous. They are used to improve efficiency in almost all fields from agriculture to space exploration. Artificial intelligence $\text{(AI)}$ is currently a hot topic. $\text{Al}$ enables computers to learn, given enough training data. For humans, sitting in front of a computer for long hours can lead to health issues.

Which of the following can be deduced from the above passage?

1. Nowadays, computers are present in almost all places.
2. Computers cannot be used for solving problems in engineering
3. For humans, there are both positive and negative effects of using computers.
4. Artificial intelligence can be done without data.
1. $\text{(ii) and (iii)}$
2. $\text{(ii) and (iv)}$
3. $\text{(i), (iii) and (iv)}$
4. $\text{(i) and (iii)}$