Explanation
Correct answer: A.
Choice A is the best answer. The text says that handshakes create trust, and that the engineers’ goal is to “improve human-robot interactions.” This suggests that they want the robot’s handshake to feel real because they want humans to trust the robot.
Why the other choices are wrong
Choice B
Choice B is incorrect. This inference isn’t supported. The text never discusses any other types of greetings, so there is no basis to make this inference.
Choice C
Choice C is incorrect. This inference isn’t supported. The text never discusses the appearance of this robot or any other robots, so there is no basis to make this inference.
Choice D
Choice D is incorrect. This inference isn’t supported. The text never discusses any uses for the robot other than interacting with humans, so there is no basis to make this inference.