Regarding the $Na^+ - K^+$ pump:
$(A)$ It transports $3\, Na^+$ ions inside and $2\, K^+$ ions outside.
$(B)$ It maintains the ionic gradient through active transport.
$(C)$ It works against the concentration gradient.
Which of the above statements are incorrect?

  • A
    $A$ only
  • B
    $B$ and $C$
  • C
    $A$ and $B$
  • D
    $A, B,$ and $C$

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