Assertion: Deadlock occurs in multiprogramming when each thread in a set is waiting for an event that can be caused only by another thread in the same set.
Reason: A thread must always request a resource before using it and release it after using it. If the requested resources are not available, the thread enters a waiting state until the resource becomes free.
(a) Assertion is true, Reason is true, and Reason is the correct explanation of the Assertion.
(b) Assertion is true, Reason is true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true.
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