A.I. Explanation:

Option 1: "A healthier life requires various small changes to diverse aspects of our life, such as diet, exercise and so on."

Explanation: This option accurately reflects the main idea of the text, which emphasizes the importance of making small adjustments in various areas like diet and exercise to achieve a healthier lifestyle. The text states that being healthy involves factors we can control, and it encourages focusing on these small changes.

Option 2: "Healthier lifestyles can bring people a great deal of benefits, including losing weight, being more active and feeling healthier."

Explanation: While this option mentions benefits associated with healthier lifestyles, it does not capture the main idea of the text, which focuses on the necessity of making small changes rather than the benefits of being healthy. The text does not emphasize the benefits as the primary message.

Option 3: "Some delicate adjustments in a limited scope of areas are believed to help us to lead a healthier lifestyle."

Explanation: This option incorrectly suggests that the adjustments are delicate and limited in scope. The text clearly states that various small changes across a wide variety of areas are necessary, not just delicate or limited adjustments. This misinterpretation leads to an inaccurate representation of the text's main idea.

Option 4: "Apart from making small changes to our life, controlling our genes can also make us healthier."

Explanation: This option introduces the idea of controlling genes, which the text explicitly states is not possible. The main focus of the text is on making changes to aspects we can control, such as diet and exercise, rather than genetics. Therefore, this option contradicts the text's message.