Is the crus at a mid ocean ridge young or old?

young

Explanation:

Most crust in the ocean basins is less than 200 million years old, which is much younger than the 4.54 billion year age of the Earth. This fact reflects the process of lithosphere recycling into the Earth's mantle during subduction.

Young

Explanation: Most crust in the ocean basins is less than 200 million years old, which is much younger than the 4.54 billion year age of the Earth.

i would think it's dendrites