Chinese Toy Exports Were Hurt in 2007 as a Result

Chinese toy exports were hurt in 2007 as a result of lead paint fears. How would this decrease in exports have affected China's aggregate demand curve?

A) Aggregate demand would have shifted to the left.
B) Aggregate demand would not have shifted, but there would have been a movement up the aggregate demand curve.
C) Aggregate demand would not have shifted, but there would have been a movement down the aggregate demand curve.
D) Aggregate demand would have shifted to the right.