Final answer:
The primary reasons for allowing transactions to run concurrently are B. Multi-user support, C. Improved throughput and resource utilization, and D. Reduced waiting time, which together enhance system efficiency and user experience.
Step-by-step explanation:
Allowing transactions to run concurrently rather than serially in database systems is beneficial for several reasons:
- B. Multi-user support: Concurrent transactions allow multiple users to interact with the database at the same time without waiting for a serial process to complete, improving user experience and efficiency.
- C. Improved throughput and resource utilization: Concurrent processing can lead to better throughput, as the system can handle more transactions in the same time period, and resources such as CPU and memory can be better utilized.
- D. Reduced waiting time: Users experience less delay because transactions do not have to wait for others to finish, which is critical for responsive systems.
These advantages contribute to more efficient database operation and user satisfaction. Options A (Inaccuracy when transactions are run serially) and E (Increased reliability) are not typically reasons for allowing transactions to run concurrently, as running them serially does not inherently cause inaccuracy and concurrency does not necessarily lead to increased reliability without proper management.