The axoplasm inside the axon contains          

high concentration of ${\text{K}}^{+}$, low concentration of proteins

high concentration of ${\text{Na}}^{+}$, low concentration of proteins

low concentration of ${\text{Na}}^{+}$, high concentration of ${\text{K}}^{+}$

low concentration of ${\text{K}}^{+}$, high concentration of ${\text{Na}}^{+}$