Explanation:

- Option 1: In the evening

- Temperatures are generally cooling down from the day's peak, but they are not at their low point yet.

- The evening still benefits from residual warmth absorbed during the day, so it's typically not the coldest time.

- Option 2: At night

- Temperatures continue to drop as the sun has set.

- While it can get quite chilly, especially in the middle of the night, it's not usually the coldest point.

- Option 3: In the afternoon

- This is typically one of the warmest periods of the day, due to the sun being high in the sky.

- The idea of this being the coldest time is contrary to the general temperature cycle.

- Option 4: In the early morning

- Usually, this is when the temperature is lowest because the sun hasn't risen to warm the atmosphere.

- It's the result of several hours of cooling after sunset.

Your understanding is correct.