The system that guarantees that critical tasks should be completedwithout shortest delay is:a) Batch Processing b) Hard Real Timec) Soft Real Time d) Time Sharing

The system that guarantees that critical tasks should be completed without shortest delay is b) Hard Real Time.

Here's why:

a) Batch Processing: This system is not designed for tasks that need immediate response. Instead, it groups tasks into batches and processes them together, which can lead to delays.

b) Hard Real Time: This system is designed to complete critical tasks without delay. It guarantees a specific response time, making it ideal for tasks where timing is critical, such as in flight control systems or pacemakers.

c) Soft Real Time: This system also aims to complete tasks quickly, but it doesn't guarantee a specific response time. This means that while it generally operates quickly, it can't guarantee there won't be delays.

d) Time Sharing: This system allows multiple users to share system resources simultaneously, but it doesn't prioritize tasks based on their criticality or need for immediate response. So, it can't guarantee that critical tasks will be completed without delay.