When a neuron is at rest

When a neuron is at rest
  a. there is a voltage difference across the
  membrane of about 70 millivolts.
  b. the interior is negatively charged.
  c. it is not responding to a stimulus.
  d. the fluid outside the membrane has more sodium
  and less potassium than the cytoplasm.
  e. all of these occur.

Question 2

The neuron transport proteins that maintain the
  resting membrane potential and restore ion gradients
  following an action potential are
  a. sodium-phosphorus passive transporters.
  b. sodium-potassium pumps.
  c. sodium-chlorine gated channels.
  d. phosphorus-calcium pumps.
  e. phosphorus-chlorine gated channels.