Which statement by a pregnant client to the nurse would indicate that the client understood the nurse's teaching?
1. "Because of their birth relationship, fraternal twins are more similar to each other than if they had been born singly."
2. "Identical twins can be the same or different sex."
3. "Congenital abnormalities are more prevalent in identical twins."
4. "Identical twins occur more frequently than fraternal twins."
3
Explanation: 3. Monozygotic twinning is considered a random event and occurs in approximately 3 to 4 per 1000 live births. Congenital anomalies are more prevalent and both twins may have the same malformation.
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