The area where the sea floor is oldest is in the area of the subduction zone near an ocean trench and is denoted as option C.
This is referred to the area which is characterized by constant collision of two or more tectonic plates.
This zone contains the oldest sea floor because the oldest ocean crust is being pushed under a continental crust and destroyed and is usually farther from the mid-ocean ridges.
Read more about Sea floor here https://brainly.com/question/1675090
#SPJ1