A Researcher Labels a Small Area of the Neural Tube

A researcher labels a small area of the neural tube at the future cerebellar level.It is later noted that cells in the deep cerebellar nuclei are labeled.What portion of the neural tube was labeled in this experiment?

A) Ventricular zone
B) Marginal zone
C) Mantle zone
D) External germinal layer
E) Internal germinal layer
F) Ependyma