Read the statements carefully and select the correct option.

Statement 1: Either a circular or a parabola may be used for vertical curve.

Statement 2: The rate of change in grade is variable throughout in a parabolic vertical curve, having a vertical axis.

1
Statement 1 is True and statement 2 is False.
2
Both statements are false.
3
Both statements are True.
4
Statement 1 is False and statement 2 is True.

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