WWhat evidence was discovered by Vines and Matthews that supported Wegener's and Hess's theories?
A. A small gap along an undersea cliff that widened by 2 centimeters a year. The cliff was located on a suspected plate boundary.
B. Magnetic variations on either side of mid-ocean ridges that indicated the seafloor was spreading from that point.
C. Undersea volcanoes that produce new seafloor material from cooled magma.
D. All of thesehich changing system is responsible for the shapes and positions of the continents

Vine and Matthews noticed there was a symmetrical pattern of magnetic stripes on either side of the mid ocean ridges. In addition when the basalts of the sea floor were dated, they were found to be the same age at similar distances away from the ridge on each side.

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