Explanation:

- It was raining heavily, that's why your father stayed at my place last night.

- Correct Answer: This is the most appropriate option. When rain makes travel difficult, it's common for someone to stay over at a nearby location for convenience or safety.

- It was raining heavily, that's why your father delayed at my place last night.

- Incorrect: "Delayed" means postponed. It's not typically used to describe someone staying overnight due to weather.

- It was raining heavily, that's why your father peddled at my place last night.

- Incorrect: "Peddled" involves selling goods or riding a bike. It doesn't fit in this context.

- It was raining heavily, that's why your father berated at my place last night.

- Incorrect: "Berated" means scolded or criticized angrily. It doesn't match the context of staying overnight.