[单选题]
The diagram below represents (/vchc,u3iv4em y3hl5 diffe((q tv*+pa*mt iv mowy3s0*xw rent standing sound waves set up inside of a set of organ mi*+ypt (wmvvxs3*a o q(0*wtpipes 1 meter long.
01.25: What is the length of the longest wavelength shown?