When the dollar appreciates, u. s. a. exports and imports increase. b. exports and imports decrease. c. exports decrease, while imports increase. d. exports increase, while imports decrease?

I believe the answer is: C. exports decrease, while imports increase.

When a dollar apprecaites, it means that our dollar become higher in value.

This would make foreign nations will obtain smaller number of goods with the same amount of currency, which would cause the decrease in our exports.
Since we could obtain larger number of goods with our currency, we would import more goods from other country.

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.

The correct answer is "the protesters were attacked by chinese troops and many were killed or arrested."