----- for a long time,most of the crops in this area died fr

_____ for a long time,most of the crops in this area died from lacking water.A.Being no rain B.
_____ for a long time,most of the crops in this area died from lacking water.
A.Being no rain B.There was no rain
C.To be no rain D.There being no rain
there be 句型在此句中为什么做状语?for a long time 不是时间状语吗?为什么是独立主格结构的非谓语动词短语,所以be动词后面就应该加ing?

D.There being no rain 这是现在分词 there being 的独立主格结构 作原因状语 其逻辑主语是自带的 no rain 相当于 一个 原因状语从句 = because there was no rain