Read the excerpt from a passage about wind turbines.

Wind turbines have become a hazard to birds and bats. Many of these animals have flown into the turbines and have died. Fish and wildlife agencies and conservation groups are concerned about the effect these machines have on these animals. The wind industry has sponsored research into the collisions. Bird and bat behavior has been studied to minimize accidents at existing and proposed wind energy sites. Careful site selection is key in reducing the accidents.

Which line from the excerpt best supports the idea that wind turbines are hazardous to wildlife?

"Bird and bat behavior has been studied to minimize accidents at existing and proposed wind energy sites."

"Many of these animals have flown into the turbines and have died."

"The wind industry has sponsored research into the collisions."

" Careful site selection is key in reducing the accidents. "