Step 1: Planning in Management.
Planning involves setting the foundation for achieving organizational goals by considering the future and deciding on the course of action.
Step 2: Analyzing each option.
- (A) Setting objectives: One of the key elements of planning is to set clear, achievable objectives that guide the organization.
- (B) Deciding on plans, actions, and strategies to achieve organizational goals: Planning also involves defining the actions and strategies required to meet the set objectives.
- (C) Allocating and arranging resources: Allocating the necessary resources is an essential part of the planning process to achieve the objectives efficiently.
- (D) Motivating and inspiring people to perform better: This is part of the directing function, not planning.
Step 3: Conclusion.
The correct answer is (A), (B) and (C) only, as these are integral components of the planning function.
Final Answer:
\[
\boxed{\text{The correct answer is (3) (A), (B) and (C) only.}}
\]