Cyanide (CN^-) (I)inhibition Can Be Restored by Addition of Succinate

Cyanide (CN^-)
(I) inhibition can be restored by addition of succinate.
(II) inhibition can be restored by addition of cytochrome c.
(III) inhibits electron transport which stops consumption of oxygen.
(IV) blocks transfer of electrons from CoQ to Complex III.

A) I,III,IV
B) I,III
C) II,III,IV
D) I only
E) III only