The correct answer is atomic bombs.
A) a recall
A recall vote is a measure in which the people vote to remove an elected representative from power. Recalls are surprisingly common, and many elected officials, especially at the local/city level, have been recalled in these elections or resigned under the threat of recall.
A foreign exchange rate is the prize of the domestic currency stated in terms of another currency. in words, a foreign exchange rate compares one currency with another to show the relative values.