evidences supporting wegener's theory surfaced when scientist tried to map out the _____ which is an undersea mountain ridge. There, scientists found out that sea floor rocks closer to the ridges were _____ while the rocks farther from the ridge were _____.

A. Ocean trenches, younger, older.
B. Ocean trenches, older, younger.
C. Mid-ocean ridge, younger, older.
D. Mid-ocean ridge, older, younger.​