Answer:
1 A strategy
Step-by-step explanation:
A strategy is a plan of action intended to achieve a common goal or objective. An organizational structure sets out how rules, roles, responsibilities are directed to achieve the common goals. A mission defines the purpose of an organization i.e why it is in existance. A hierachy is a power structure that defines how people are ranked in organizations based on power or importance.
Based on the above, option 1 is the correct answer.