As an Adult,Sanya Wants to Learn Spanish and Become a Spanish

Multiple Choice

As an adult,Sanya wants to learn Spanish and become a Spanish teacher.She is having trouble trilling the r and does not sound like a native speaker.What kind of synapse overproduction and pruning process is associated with Sanya's difficulty?

A) Neurogenesis
B) Myelination
C) Experience-dependent
D) Experience-expectant