There are preemptive and non-preemptive approaches to handle critical section in operating system. As non-preemptive approaches doesn’t face problem of race conditions, explain in detail why we still use preemptive approaches to handle critical section.

answer: copyright is extremely important to authors because it constitutes the ownership of one's original work. having ownership means you can protect your work as intellectual property and control who makes money from it—which is you and those to whom you assign rights.

answer:

all three have their own beauties

explanation:

it is difficult to choose someone as most beautiful