题目4单选题
Of the following descriptions regarding the traditional Chinese solar term "Chushu" (End of Heat), which one most accurately reflects its essential meaningA. It marks the official beginning of the hot summer season, with temperatures rising significantly across the countryB. It signifies the hottest period of the year, when temperatures reach their annual peak and heatstroke warnings are commonC. It indicates the gradual retreat of summer heat and the transition into autumn, with decreasing temperatures and clearer skiesD. It represents the complete end of all warm weather, immediately followed by the first frost of the season