题目选项分析

At the annual stockholders meeting, investors heard a presentation on the numerous challenges facing the company, among them the threat of a rival's multibillion-dollar patent-infringement suit and the decline in sales of the company's powerful microprocessor chip.

At the annual stockholders meeting, investors heard a presentation on the numerous challenges facing the company, which includes the threat of a rival's multibillion-dollar patent-infringement suit and declining sales of the company's powerful microprocessor chip.