In 1848, groups in sicily, france, germany, italy, and the austrian empire attempted to overthrow monarchies and replace them with more representative forms of government. what best characterizes this situation?

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?