This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
The highest percentages of polyunsaturated fatty acids are present in 
Select and explain. 
A. Groundnut oil, B. Soyabean oil, C. Margarine, D. Palm oil
B: Soyabean oil
Answer: B: Soyabean oil 
Explanation: None