Which of the following is the best example of a check on presidential power?

Who is the executive branch checking when the president calls a special session of congress

If there were no system of checks and balance,the process of government would eventually fall apart. do you agree with this opinion? why or why not?

Like many cities in the south, atlanta was poorly prepared to meet the emergency of the great depression.  which statement  bestdescribes how atlanta was poorly prepared?