D. Groats.
Grain possesses vital potential. The whole plant grows from the only kernel. Grain also is an abundance symbol. After a harvest ears process and receive grain. Bake bread which is the main food product from grain. "Kernel" also call the smallest particle of crystal substance. Would you like to catch "grain" of idea or the concept? Not nastupilol time in your life to split all forms to the smallest components?
The sign indicating existence of paranormal abilities.