Explanation:

If we arrange the given events in a logical way then at first the Annual Examination - Class 12 will be held. Then result of Examination - Class 12 will be declared. After that one should apply for admission to college. Then Admission merit list will be declared. After that one will get admission in the college. Then one will attend classes in college. So, option 1 is the correct answer. 

5. Annual Examination – Class 12

6. Result declaration – Class 12

4. Applying for admission to college

2. Admission merit list declaration

3. Getting admission in the college

1. Attending classes in college