All of the following can be classified as degrees of placenta previa except:
A) low-lying placenta.
B) partial placenta previa.
C) marginal placenta previa.
D) high-flying placenta.
D
Explanation: A) Low-lying placenta describes a placenta that is implanted in the lower segment, but does not reach the internal os.
B) Partial placenta previa indicates that the placenta partially covers the internal os.
C) A marginal placenta previa describes a condition in which the edge of the placenta is at the margin of the internal os.
D) There is no condition called a high-flying placenta.
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