'It is the obligation of a subordinate to properly perform the assigned duty.'

What is being referred to here?

Responsibility

The correct answer is option 1- Responsibility.

Responsibility is the obligation of a subordinate to properly perform the assigned duty. It arises from a superior– subordinate relationship because the subordinate is bound to perform the duty assigned to him by his superior. Thus, responsibility flows upwards, i.e., a subordinate will always be responsible to his superior.