which evidence originally supported hesss idea of seafloor spreading in 1968?\nyounger rocks are closer to…

which evidence originally supported hesss idea of seafloor spreading in 1968?\nyounger rocks are closer to mid - ocean ridges.\nthe destruction of crust occurs at deep - sea trenches.\noceanic rocks are pillow - shaped when formed.\nrocks across the ocean floor have alternating magnetic stripes.
Answer
Answer:
A. Younger rocks are closer to mid - ocean ridges.
Brief Explanations:
Seafloor spreading suggests new crust forms at mid - ocean ridges. So, younger rocks being closer to these ridges supports the idea. Other options are related to plate tectonics but not the original evidence for seafloor spreading in 1968.