Strong Support for Hess's Concept of Widening Seafloors Came in the 1960s

Strong support for Hess's concept of widening seafloors came in the 1960s when it was recognized that the pattern of Late Cenozoic magnetic reversals determined in terrestrial rocks was also evident also in rock of the seafloor in the form of

A) guyots and seamounts, which tended to cluster around mid-ocean ridges.
B) symmetrical patterns of magnetic striping surrounding mid-ocean ridges.
C) normal magnetization of mid-ocean ridges and reverse magnetization of other seafloor.
D) a constant rate of seafloor spreading throughout the long span of geological time.