Step 1: Understand the logical flow of planning a control programme.
Step 1: Planning a public health programme follows a logical sequence from understanding the problem to implementing a solution.
Step 2: Arrange the steps in a logical sequence.
Step 2:
(B) Problem Definition: The very first step is to clearly define and understand the health problem that needs to be addressed.
(A) Establishing Priorities: Once the problem is defined, its various aspects must be prioritized to focus resources where they are most needed.
(D) Setting Objectives: With priorities established, specific, measurable, achievable, relevant, and time-bound (SMART) objectives must be set.
(C) Considering Strategies: Finally, different strategies are considered and evaluated to determine the best way to achieve the set objectives.
Step 3: Conclude the correct order.
Step 3: The correct sequential order is B \(\rightarrow\) A \(\rightarrow\) D \(\rightarrow\) C.