Answer:
C. General, simple, and short.
Step-by-step explanation:
A formal rejection letter is said to said to be given or delivered to a job applicant in a field in which he/she must have formally applied for a role or position in a said organisation or hiring firm. This form of letter is known or advised to be general, simple and short. It is meant to be implied to generally everyone that applied for the same said position. It should never be insinuative hereby leading an applicant on; giving them hopes there could be an opening anytime soon.
That is why it is advised to avoid any form of discrimination charge or wrongful actions so as not to involve or spring up legal actions.