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Consider the following statements regarding fixtures employed for holding workpiece during machining.

1. The location is based on the \[3-2-1\] principle

2. The numbers refer to the pins employed in three mutually perpendicular planes to arrest all the degrees of freedom

3. Fixture also provides tool guidance.

Of these statements:

A) 1, 2 and 3 are correct

B) 2 and 3 are correct

C) 1 and 3 are correct

D) 1 and 2 are correct