新prep2-230

At the annual stockholders meeting, investors heard a presentation on the numerous challenges facing the company, including among them the threat from a rival’s multibillion-dollar patent-infringement suit and the declining sales for the company’s powerful microprocessor chip.

A. including among them the threat from a rival’s multibillion-dollar patent-infringement suit and the declining sales for

B. which includes the threat of a rival’s multibillion-dollar patent-infringement suit and declining sales of

C. included among these the threat from a rival’s multibillion-dollar patent-infringement suit as well as a decline in sales for

D. among them the threat of a rival’s multibillion-dollar patent-infringement suit and the decline in sales of

E. among these the threat from a rival’s multibillion-dollar patent-infringement suit as well as the decline in sales for

D is correct. 请问“主句，介词+代词+名词"是什么结构？后面有谓语的省略么?

倒装形式的独立主格结构

实际上是the threat of a rival’s multibillion-dollar patent-infringement suit and the decline in sales of the company’s powerful microprocessor chip among them,倒装可以避免头重脚轻

B. which includes the threat of a rival’s multibillion-dollar patent-infringement suit and declining sales of

includes单三，使which不能指代复数名词challenges