Immigration, American Policy, and Foreign Policy.
The US assisted in war to protect its citizens and businesses in Cuba... hope this correct
"Working for the election of sympathetic public officials" is the activity helpful to both public officials and interest groups.
<u>Answer:</u> Option B
<u>Explanation:</u>
An employee of a leader of a political party, governmental authority, political candidate, official of a public international organisation, state-owned enterprise's officer or employee, including a state-owned etc are called as "Public official".
During elections many demanding duties come out which need participation from other people in most ethical and regulated way but under law. Indulging in duties or volunteering during elections of sympathetic public officials will be benefited to both the parties i.e officials and groups.
D is the best answer for this one or both of them