Cheryl Peterson, a U$.$S$.-$based business executive, paid the equivalent of $$20$ to an official of the country of Murundi to expedite the overnight delivery of critical documents. When questioned, Cheryl Peterson claimed this was a way to facilitate the performance of an obligation that was already agreed upon. The $$20$ is an example of

$1.$ a violation of the Foreign Cprrupt Practices Act.

$2.$ a grease payment.

$3.$ an inappropriate payment.

$4.$ an under$-$the$-$table payment.

$5.$ a bribe.