What is the correct chronological sequence of the following constituent steps in organizing process of a public service unit ?1. Grouping various activities after factoring in available human and material resources.2. Delegating to each group head the necessary authority.3. Identifying and classifying the various activities.4. Tying the group together after factoring in authority relationships.Select the correct answer using the code given below--

• A. 2, 4, 3 and 1
• B. 3, 1, 2 and 4
• C. 2, 1, 3 and 4
• D. 3, 4, 2 and 1