A.I. Explanation:

Option 1: "humans"

Explanation: The text discusses how technology, particularly robots, is taking over tasks traditionally performed by people. The phrase 'machines perform many of the tasks done by' logically leads to 'humans,' as it directly refers to the workforce that robots are replacing. This aligns with the main idea of the text, which highlights the advancements in technology and the concerns surrounding them.

Option 2: "being"

Explanation: The term 'being' is too vague and does not specifically refer to the group of individuals performing tasks. While it could imply humans, it lacks the clarity and specificity needed in this context. The text emphasizes the role of machines in relation to a specific group, which is best captured by 'humans'.

Option 3: "soul"

Explanation: The word 'soul' does not fit the context of the sentence, as it does not relate to the tasks performed by machines. The text is focused on technology and its impact on labor, making 'soul' an irrelevant choice that does not connect logically to the main idea.

Option 4: "individual"

Explanation: While 'individual' could refer to a person, it is still too broad and does not capture the collective nature of the workforce being discussed. The text emphasizes the replacement of tasks done by a larger group, making 'humans' the more appropriate choice.