An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

An internal mouthpiece is said to be running free if the length of the

1.	An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.
A.	less than twice
B.	more than twice
C.	less than three times
D.	more than three times
Answer» D. more than three times