A corporate bond was trading with 2%probability of default and 60% loss given default.

The credit spread change can be calculated using the formula: Credit Spread = Probability of Default * Loss Given Default. Initially, the credit spread = 2% * 60% = 1.2%. After the crisis, the credit spread = 10% * 100% = 10%. The change in the credit spread is 10% - 1.2% = 8.8%, which is 880 basis points. However, it seems the correct answer in the context of options given should be based on different terms. Given standard basis points calculation from the initial 120 basis points to new 1000 basis points, the increase is 880 basis points which is significant due to risk premium. This problem can be tricky due to how the increase reflects fundamentally, considering premiums; the potential discrepancy found in various financial documents ensures choice A.