Which example best shows the contribution of african american troops during the civil war?
a)the first battle of bull run
b)the second battle of bull run
c)the battle at chancellorsville
d)the battle at fort wagner

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?