Which scientific breakthrough did Elon Musk's company Neuralink first demonstrate in 2020?

Test your knowledge about influential CEOs who have revolutionized the science and technology sectors! This poll focuses on one of the most recognizable figures in modern scientific innovation and commercial space exploration. Can you identify the correct information about this tech mogul who has transformed multiple industries with groundbreaking companies?

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A brain implant that successfully recorded neural activity in a pig
A quantum computing chip that achieved 128-qubit processing
An artificial photosynthesis system that converts CO2 to oxygen at 85% efficiency
A neural interface that allowed a paralyzed human to control a robotic arm