Final answer:
The number of elected positions on the Sorority's National Council and the specific event for elections can vary and are not provided in the question. Generally, sororities elect council members at leadership conferences, which may occur every other summer, similar to political party conventions.
Step-by-step explanation:
The number of elected positions on a Sorority's National Council and the event at which these officers are elected can vary between organizations. Generally, sororities have leadership conferences where they elect their national officers, but without specific information about which sorority the question refers to, providing an exact number of elected positions and the name of the event is not possible. These leadership conferences often take place in the summer, potentially every other year, aligning with the broader practices of national party conventions in the United States. However, for national political parties, their conventions, such as those of the Republican and Democratic parties, are high-profile events held in the summer during presidential election seasons every four years. They are an essential part of the election process, where delegates assemble to debate and decide on the party's platform, confirm primary election results, and rally support for their presidential and vice presidential nominees.