What was the prevailing economic challenge the united states faced at the start of world war ii?
attracting a labor force
obtaining scarce resources
filling military supply orders
deciding how to allocate contracts
deciding which goods were not essential

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?