Answer:
The correct answer is b) "We are worried that our child may have other congenital problems that we aren't aware of."
Explanation:
This malformation is associated with other congenital problems, such as heart problems, spinal problems, renal problems due to malformation of kidneys, fistulas in the colon, or tracheoesophageal fistula. When the parents said "We are worried that our child may have other congenital problems that we aren't aware of." the nurse has informed the parents about other possible congenital problems and they understood it, that is why they are worried.