If the calculated RPC (or RPN) for a failure is 450, which of the following statements is true?

If the calculated RPC (or RPN) for a failure is 450, which of the following statements is true?

Action should be taken to eliminate this failure prior to a failure with a lower RPC.

The R rating = 15, the P rating = 10, and the C rating = 2.

All of the RPC codes are 5.

Action should be taken to eliminate this failure after action is taken for a failure with a lower RPC.