Step-by-Step Scheduling

To find which drama is staged first, we need to determine the single, unique schedule for the 5 dramas and 1 break that satisfies all the given rules. This is based on the same logic as the previous related question.

1. Summary of Deductions

By analyzing all the constraints, we can deduce a unique sequence. The key constraints are:

• The dramas must be scheduled in blocks: (B, D) and (A, E).
• A cannot be in the first hour, and C cannot be in the last hour.
• The sequence of dramas cannot have A immediately following D.
• The break must be in the 3rd or 4th hour.

A full analysis shows that only one valid schedule is possible, which requires the break to be in the 3rd hour.

2. The Final Schedule

The only arrangement that satisfies all conditions is:

• 1st Hour: B
• 2nd Hour: D
• 3rd Hour: Break
• 4th Hour: C
• 5th Hour: A
• 6th Hour: E

Conclusion

Looking at the final schedule, the drama that is staged first (in the 1st hour) is B.