That twenty-one ceramic dog figurines were discovered during the excavating of a 1,000-year-old Hohokam village in Tempe, Arizona, has nearly doubled the number of these artifacts known to exist.

1. That twenty-one ceramic dog figurines were discovered during the excavating
2. Twenty-one ceramic dog figurines discovered at the excavation
3. Discovering twenty-one ceramic dog figurines at the excavating
4. Ceramic dog figurines, twenty-one of which were discovered during excavating
5. The discovery of twenty-one ceramic dog figurines during the excavation

这题答案给的是E。但小妹选的是A，因为这题的意思这个新的发现的内容使得these artifacts的数量double了，所以要用that引导的从句。而不是E所说的这个发现使得these artifacts的数量double了。

不知为个有什么看法？

According to GMAC, A suffers from wordiness by introducing a THAT clause in place of "the discovery of" construction which E provides.