Energy needs based on BMR and activity level Steps:

• Calculate approximate BMR using Harris-Benedict formula, assuming average heights (175 cm men, 170 cm women) since not provided.
• Adjust BMR by activity multipliers: low/sedentary ≈1.2, high/very active ≈1.725.
• Compare total daily energy expenditure (TDEE = BMR × multiplier) for each option.
• Identify the highest TDEE, noting height assumption introduces minor uncertainty but doesn't change ranking.

Why B is correct:

• B's high activity multiplier significantly boosts her TDEE to ~2760 kcal/day, exceeding others despite female sex lowering base BMR.

Why the others are wrong:

• A: Male sex and youth raise BMR (~1920 kcal), but low activity limits TDEE to ~2300 kcal/day.
• C: Identical to B except low activity, yielding lower TDEE (~1920 kcal/day).
• D: Older age and lower weight reduce BMR (~1360 kcal), so low-activity TDEE is only ~1630 kcal/day.

Not enough information on heights for precise calculation, but trends confirm ranking. Final answer: B