Can you please help me understand this?

C) PROVIDES*

Johnson Chemicals is considering two options for its supplier portfolio. Option 1 uses two local suppliers. Each has a "unique-event" risk of 4.5%, and the probability of a "super-event" that would disable both at the same time is estimated to be 1.3%. Option 2 uses two suppliers located in different countries. Each has a "unique-event" risk of 12%, and the probability of a "super-event" that would disable both at the same time is estimated to be 0.27%. a) The probability that both suppliers will be disrupted using option 1 is (round your response to five decimal places). a) The probability that both suppliers will be disrupted using option 1 is (round your response to five decimal places). b) The probability that both suppliers will be disrupted using option 2 is (round your response to five decimal places). c) rovides the lowest risk of a total shutdown