This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Which one of the following describes the flavouring substance asafoetida (Hing)? 
Select and explain. 
A. Dried leaf extract, B. Exudate from chopped roots, C. Pith of stem boiled and dried, D. Dried and hardened paste of fruit
B: Exudate from chopped roots
Answer: B: Exudate from chopped roots 
Explanation: Asafoetida is a plant that has a bad smell and tastes bitter. It is sometimes called "devil's dung." People use asafoetida resin, a gum-like material, as medicine. Asafoetida resin is produced by solidifying juice that comes out of cuts made in the plant's living roots. Ref: Internet