Option a) Fracture zones run parallel to a mid-ocean ridge axis.
A fracture zone is a linear feature on the ocean floor that can be hundreds or even thousands of kilometers long and is caused by the action of offset mid-ocean ridge axis segments. They are the result of plate tectonics.
Strike-slip activity occurs when lithospheric plates on either side of an active transform fault move in opposite directions. Fracture zones extend beyond the transform faults and away from the ridge axis; while seismically inactive (because both plate segments are moving in the same direction), they show evidence of past transform fault activity, primarily in the ages of the crust on opposite sides of the zone.
Learn more about fracture zones
https://brainly.com/question/9201304
#SPJ4