The correct arrangement is: ”People with a high BMI and a genetic pre disposition to obesity have a lower risk of heart disease compared to people whose extra weight is related to environmental and lifestyle factors alone.” Therefore, the correct answer is option 3.
• (A), (B), (C), (D): Incorrect order; does not form a meaningful sentence.
• (A), (C), (B), (D): Incorrect order; does not convey the intended meaning.
• (B), (A), (D), (C): Correct; this order creates a coherent and logical sentence.
• (C), (B), (D), (A): Incorrect order; does not maintain the meaning of the parts.