Answer:
The correct answer would be A, Onions.
Step-by-step explanation:
Meat, vegetables, herbs, etc are simmered with water on a low to medium flame to make a broth. Broths are usually thin and after some time, due to simmering, it starts to get body. The nutrients in the meat or vegetables or herbs start to mix in the water and give it a delicious taste. But the broth is still thin and needs to be thickened. So in order to make the broth thick, we need to add onions into the broth. Now when it will cook on a slow flame, the broth will get a hearty body and all the nutrients of the broth will make an appetizing dish.