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Choose one answer

1. AThe absolute risk is identical to that seen with sodium valproate exposure
2. BThe absolute risk is low, and more recent studies suggest it is smaller than earlier estimates
3. CThe absolute risk is limited to exposure occurring after the first trimester only
4. DThe absolute risk exceeds one in ten pregnancies exposed in the first trimester
5. EThe absolute risk has been shown to increase substantially with each further subsequent pregnancy exposure