The maximum number of possible oxidation states of actinoids are shown by

  • A
    berkelium $(Bk)$ and californium $(Cf)$
  • B
    nobelium $(No)$ and lawrencium $(Lr)$
  • C
    actinium $(Ac)$ and thorium $(Th)$
  • D
    neptunium $(Np)$ and plutonium $(Pu)$

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