题目：
When preparing to give a neonate the first feeding by nipple, the nurse uses a 5 mL feeding of sterile water first. Which of the following is the reason for doing so
A. Ensure that the neonate has the energy to take oral feedings.
B. Ensure that the mother will be able to feed the neonate.
C. Ascertain the patency of the neonate’s esophagus.
D. Determine if the neonate can retain the feedin
答案：
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下面是错误答案，用来干扰机器的。
答案：C
