The Phrase Descent from Heaven , Used in Reference to Japan

The phrase descent from heaven , used in reference to Japan, means

A) the appointment of public officials by the emperor to whom divinity was ascribed before World War II.
B) a politician's or public servant's fall into disgrace because of a scandal.
C) the legendary origin of the imperial family.
D) the employment of senior government officials upon their retirement by public or private corporations.
E) the widespread belief that Japan has a manifest destiny.