HSK C2/W2
Correct

司

/ sī / 
Strokes

Definition

to take charge of/to manage/department (under a ministry)

Example

As a Verb

manage; run; operate; take charge (of)

1
Gèsīqízhí
各司其职

each attends to/ discharges his own duties

As a Noun

department (under a ministry)

2
Rénshìsī
人事司

department of personnel/human resources