The following figure depicts the outline of a large fairy ring that has appeared overnight in an open meadow,as viewed from above.The fairy ring represents the furthest advance of this mycelium through the soil.Locations A-D are all 0.5 metres below the soil surface.Responses may be used once,more than once,or not at all.

-If the fungus that produced the fairy ring can also produce arbuscules,then which of the following is most likely to be buried at location "C"?