In doing so, Southwest is attempting to achieve Public service promotion.
Option A
Explanation:
Promotion is an improvement in the rank of an officer to a higher degree that carries greater responsibility.
The Public Service Commission, Regulations state that a public servant with a greater pay or pension than for the public office connected, in which the official was subsequently appointed and/or promoted, shall be promoted as conferment of the public service citizens.
There will be normally two different kinds of promotion, i.e. "class promotion" and "rank promotion." Presently, the competition of "class to class" is inevitably done through both the selection exercises whereas the "grade to grade recognition," with the promotion fashion clearly stated in the appropriate programs of service, is defined on a scenario-by-case basis.