The correct option is B 3−1−4−2
The temperature of the Sun is the most while the temperature of ice-cream is the least in this list.
Cold water is warmer than a cup of ice-cream, whereas a cup of tea is warmer than cold water. So, the correct order of the given objects from the coldest to the hottest, is: Ice cream < Cold water < Hot tea < The Sun, or 3−1−4−2.