Which of the Following Is NOT True of the Curvatures

Multiple Choice

Which of the following is NOT true of the curvatures of the vertebral column?

A) The thoracic and sacral curvatures are convex on the anterior side and concave on the posterior side.
B) There are four curvatures of the vertebral column.
C) Primary curvatures are formed by the time of birth.
D) The cervical and lumbar curvatures are secondary curvatures.
E) All of these are true of the curvatures of the vertebral column.