Answer:
d. Controlling
Step-by-step explanation:
As we know that
There are fives principles of management that include planning, organizing, staffing, directing and controlling
The controlling is the last step of the management principles in which the firm compared its actual performance with the standard one so that if there is an error that needs to be checked and according to that corrective actions are taken
Therefore in the given case, Lauren should add controlling techniques for generating the ideas