Australian embryologists have found evidence that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving as a kind of snorkel.
(A) that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving
(B) that has suggested the elephant descended from an aquatic animal, its trunk originally evolving
(C) suggesting that the elephant had descended from an aquatic animal with its trunk originally evolved
(D) to suggest that the elephant had descended from an aquatic animal and its trunk originally evolved
(E) to suggest that the elephant is descended from an aquatic animal and that its trunk originally evolved
题目分析：应该是发现了两个事情，1大象起源于某种动物2 象牙是怎么进化来的。这个并列只有ADE体现出来了，但是A后面用evolving无法和前面的is descended进行并列，干掉。D用had descended，可是我表达的意思是一个客观事实，应该用E的一般现在时会好一些，选E。
