Among instances of corporate malfeasance in the early twenty-first century, the scandal was the most shocking and economically damaging for employees and shareholders.
a. worldcom
b. american tobacco
c. tyco international
d. enron

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.