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Option 1: "Modern robots need to develop psychological aspect."
Explanation: The text states that modern robots involve psychology because they will be working alongside humans, indicating that understanding people is essential for their development. This aligns with the speaker's opinion that a psychological aspect is necessary for modern robots.
Option 2: "Robots have to work away from humans."
Explanation: This option contradicts the text, which emphasizes that modern robots are designed to work alongside humans, not away from them. Therefore, this statement is not supported by the information provided.
Option 3: "Third video was all about robot-staffed stores."
Explanation: The text specifies that the third video focuses on a robot-staffed hotel, not stores. This misinterpretation of the content makes this option incorrect.
Option 4: "Robots from the beginning were all about technology."
Explanation: The text mentions that robots used to be primarily about mechanical engineering, indicating that their focus has evolved over time. Thus, this statement oversimplifies the historical context and is not accurate.
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