147. Australian embryologists have found evidence that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolved as a kind of snorkel.

 (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 evolving

 (D) to suggest that the elephant has 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

答案是E

那為什麼這裡的不定式修飾不會有歧義  比方說 Australian embryologists ...to suggest  和evidence ...to suggest

語法筆記上是說 不定式做狀語修飾動詞結構(have found) ...

然而

prep2的第15題 的語法筆記上 卻說不定式『...通常做狀語表目的,其邏輯主詞可能是句子主詞...』 

在第15題反而擔心去修飾到主詞而不是鄰近的名詞

請問各位NN該如何解釋這裡呢？   謝謝回答～～～