One's duty to do a job or perform a task is called (points : 2)
authority
accountability
responsibility
delegation

The answer to this would be C. It is his/her responsibility to do there Job! 
Authority meaning, there the ones in charge of something/someone. For example your parents have authority over you. 
Accountability is more like relying on someone to do something, it also relates to having responsibilities but not quite. 
and Delegation means that means given the task to others. Also like authority.
Does this help any? :D
•❋Korey❋•