Fill in the missing step in the following deadlock situation. Two users from the local board of education are each running a program (P1 and P2), and both programs will eventually need two DVD drives to copy files from one disc to another. Only two DVD-R drives are available and they're allocated on an "as requested" basis. Soon the following sequence transpires:1. P1 requests drive 1 and gets it.2. ____3. P1 requests drive 2 but is blocked.4. P2 requests drive 1 but is blocked.
A. P1 requests drive 2.
B. P2 requests drive 2 and gets it.
C. P2 requests drive 1 but is blocked.
D. P1 releases drive 1.
Answer: B
Computer Science & Information Technology
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