When the plunge said to be zero, then the axis of the fold is said to

1.	When the plunge said to be zero, then the axis of the fold is said to be ____________
A.	Vertical
B.	Horizontal
C.	Inclined at 60° to the horizontal
D.	Inclined at 60° to its normal.
Answer» C. Inclined at 60° to the horizontal

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