The Following Figure Depicts the Outline of a Large Fairy

Multiple Choice

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 meters below the soil surface. Responses may be used once, more than once, or not at all.

-What is the most probable location of the oldest portion of this mycelium?

A) A
B) B
C) C
D) D