Question

In february, when paula, the manager of a landscaping company, is modifying worker schedules to handle the expected increase in the number of customers in spring and summer, she is involved with ____

Answer 1

I think she is involved with: Managing

Any form of action that is being done to control a group of employees to achieve organizational goals could be considered as Managerial Actions.
When modifying worker's schedule, Paula basically created an effort to make sure the company achieves the required deadline.