This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
A 28-year-old primgravida had prepregnancy BMI of 30kg/m2, What is the recommended weight gain for her during pregnancy : 
Select and explain. 
A. 5-7 kg, B. 8-11 kg, C. 10-13 kg, D. 14-16 kg
A: 5-7 kg
Answer: A: 5-7 kg 
Explanation: An obese women(BMI>30) should not gain more than 7 kg. Reference:DC Dutta's Textbook of obstetrics,8th edition,page no:57