阅读下面短文，从每题所给的四个选项A、B、C和D中，选出最佳选项。
A
Thousands of dead red-winged blackbirds fell from the sky in an Arkansas town on New Year's Eve alter massive injuries, tests by Arkansas officials concluded on Monday. Some 5,000 birds mysteriously fell from the sky in Beebe, Arkansas after dark on New Year's Eve. "The birds suffered from serious physical injuries leading to internal hemorrhage ( 大量出血) and death. There was no sign of infectious disease," the Arkansas Game and Fish Commission said in a statement. The birds were otherwise healthy, it said.
