C.
The narrator is hiding his ill intentions.
The correct answer to this open question is the following.
Here we have a statement, not a question. It seems that you forgot to include the question.
However, in order to help you, we can say the following.
The act of giving instruction or important information can be understood as an order. To give orders with good grammar, you use the imperative mode
If you are referring to the proper way to give instructions as a leader or in the corporate world, you need to do it properly, respectfully, but in an energetic way to express authority. It is a command, expressed with respect, but a command that needs to be obeyed.
