I don't have the passage with me but I would say it’s A.
Answer:
"Characterized by propriety and dignity and good taste."
Explanation:
To describe someone as decorous generally means they are polite or have good taste.
Steve is involved in OPERATION MANAGEMENT.
Operation refers to all the activities that are involved in creation of goods and services. Operation management refers to the control and the systematic management of all the processes that convert raw materials and other resources into finished goods or services. From the information given in the question, it can be seen that Steve is engage in manufacturing operation management.