When scientists looked at the polarity of bands of rock on either side of the mid-ocean ridges, what did they find? a. that there was no pattern b. that the patterns were different c. that the polarities were at right angles d. that the patterns of polarity matched up on both sides

I am pretty sure the answer is D. That the patterns of a polarity matched up on both sides.

B. that the patterns were different

Explanation:

When the scientist looked at the oceanic ridges at the surface they found on either side were the polarity of bands of rocks as on either side of the oceanic ridges where the positive and negative anomalies.  Being composed of hard and soft rocks, these tend to have been in strips of black and white bands or rocks aligned due to the upwelling of new lava on the sides of the ridges throughout the evolutionary history of the planet. Polarities have also been documented to have been aligned in coordination with earth magnetic poles, Being basaltic these rocks have varying ages as older rocks are found away from the mid-oceanic ridges due to the impact of spreading out of lava or magma.