Your answer will be interphase .
OK so very difficult but I will try,
A tectonic plates
Because the outermost part of earth is know as the lithosphere. The lithosphere is divided into a number of tectonic plates. These plates move and interact with one another, driven by conventional forces within the earth
A.
Because yellow is more dominant so it’s more common for offsprings to have yellow petals but some of the offsprings will also take some traits of the pink petals so it’s A!