Marta Is Injected with a Drug That Prevents Sodium (Na+)

Multiple Choice

Marta is injected with a drug that prevents sodium (Na+) from entering into neurons in the part of the brain that controls the movement of the arms. What effect will this drug most likely have on Marta?

A) She will more her arms spasmodically.
B) She will not be able to move her arms.
C) Her arms will be numb, but she will be able to move them.
D) She will likely go into a coma.