a JJ question

56. The proliferation of so-called cybersquatters, people who register the Internet domain names of high-profile companies in hopes of reselling the rights to those names for a profit, led to passing the Anti-Cybersquatting Consumer Protection Act in 1999, allowing companies to seed up to $100000 in damages against those who register domain names with the sole intent of selling them later.

A passing the Anti-Cybersquatting Consumer Protection Act in 1999, allowing companies to seed up to $100000 in damages against those who register domain names with the sole intent of selling them later.

B the passage of the Anti-Cybersquatting Consumer Protection Act in 1999, which allows companies to seed up to $100000 in damages against those who register domain names with the sole intent that they will sell

C the passage in 1999 of the Anti-Cybersquatting Consumer Protection Act, which allows companies to seed up to $100000 in damages against those who register domain names with the sole intent of selling
 

D the Anti-Cybersquatting Consumer Protection Act, which was passed in 1999, and it allows companies to seek up to $100000 in damages against those who register domain names with the sole intent to sell

E the Anti-Cybersquatting Consumer Protection Act, passed in 1999, and it allows companies to seek up to $100000 in damages against those who register domain names with the sole intent of selling

I choose B, is that correct?

the passage of the Anti-Cybersquatting Consumer Protection Act in 1999, which allows companies to seed up to $100000 in damages against those who register domain names with the sole intent that they will sell

THEY是不是指代不清楚啊

我支持C