Acaucus is an election, which determines the number of electoral votes for each candidate. a meeting of party members to select delegates to their national convention. the meeting wherein a state announces its electoral votes. the meeting, which determines who the party's vice presidential candidate, will be.

a meeting of party members to select delegates to their national convention.

Explanation:

A caucus in the US states is a formal meeting or conference where the local members of the political party or the legislative body  nominates their preferred candidates among candidates those who are running for office after many speeches and debates . At Caucus party delegates are also selected to attend their national convention.

Therefore the answer is --

a meeting of party members to select delegates to their national convention.

loess contribute to the flooding of rivers by providing the silt that is washed into rivers and constantly raises the bed of the rivers. this elevation above the surrounding flood plains and dams allow the river to overwhelm the dams and flood thousand of square miles of neighboring flood plains.

did mary wollstonecraft believe was a natural ingredient for women’s happiness?

so you should go with

a. strong