I have a questions on D17.2

on page 19 table 13, I can't figure out the number of welds need for Production witness welds, test lot.

in the 1st row of the table 13, I can't determine how many welds should I do for Class A, B, or C.

Is it 3 Shear  and 3 metallographic?
Or it is 3 Shear and 1 metallographic ?
Or it is Only 3 Shear?

If someone know the answer, that would be really appreciated.

Thanks a lot