Explanation:
This sentence describes an action to be taken with vegetables when chicken is boiling. The context suggests adding ingredients to a cooking process.
- Peel means to remove the outer skin of a fruit or vegetable.
- Add means to put something in or join something else to make it bigger or to balance it. This fits the context of adding vegetables to a dish.
- Buy means to obtain something in exchange for money. This is irrelevant in the context of cooking.
Answer:
B add