“人间四月芳菲尽，山寺桃花始盛开”描述的现象，是受下列哪种因素影响（　　）

A．阳光

B．温度

C．空气

D．水分

The dull wetland _______ the moment the first ray of sunlight shines on it. Thousands of creatures living in it wake up and begin their life of a new day.

A．stays alive

B．begins to live

C．makes a living

D．comes to life