Answer:
a, b and c i.e Organizing, Planning and Controlling
Explanation:
Note: Since more than one option is to be selected, the three terms have been provided as an answer
Organizing is the management function concerned with creation of organizational hierarchy, defining roles and objectives and authority and reporting responsibilities.
Planning refers to providing for unforeseen future events and deciding the ways to deal with them.
Directing refers to the management function of guiding, supervising and leading people with an objective to meet organizational goals and extract efficient performance.
In the given case, written request signifies planning, creation of a staff and consulting before arriving at decisions refers to organizing and controlling function.