Explanation:

- In the sentence, "The kids have been pestering me to buy them new toys," the word "pestering" means to bother or annoy persistently.

- Let's go over the options:

1. Pacifying: Means to calm or soothe someone, often after they have been upset. This is the opposite of pestering, as it involves reducing annoyance rather than causing it.

- Correct Answer

2. Perturbing: Means causing worry or upset. This is similar to pestering, not opposite.

3. Bugging: Another way to say pestering. It means to annoy or bother.

4. Tormenting: Means to inflict severe suffering or annoyance, more intense than pestering but still similar in nature.

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