Q38

$P=\left\{P_{1}, P_{2}, P_{3}, P_{4}\right\}$ consists of all active processes in an operating system. $R=\left\{R_{1}, R_{2}, R_{3}, R_{4}\right\}$ consists of single instances of distinct types of resources in the system. The resource allocation graph has the following assignment and claim edges. Assignment edges: $R_{1} \rightarrow P_{1}, R_{2} \rightarrow P_{2}, R_{3} \rightarrow P_{3}, R_{4} \rightarrow P_{4}$ (the assignment edge $R_{1} \rightarrow P_{1}$ means resource $R_{1}$ is assigned to process $P_{1}$, and so on for others) Claim edges: $P_{1} \rightarrow R_{2}, P_{2} \rightarrow R_{3}, P_{3} \rightarrow R_{1}, P_{2} \rightarrow R_{4}, P_{4} \rightarrow R_{2}$ (the claim edge $P_{1} \rightarrow R_{2}$ means process $P_{1}$ is waiting for resource $R_{2}$, and so on for others) Which of the following statement(s) is/are CORRECT?