Why Are Terrorists UNLIKELY to Be Deterred from Using Nuclear

Why are terrorists UNLIKELY to be deterred from using nuclear weapons by states with nuclear weapons?

A) They are irrational.
B) They do not pay costs as an actor.
C) States cannot find members of terrorist groups.
D) They are less likely to face costs,as they lack fixed territory.
E) Terrorists can easily absorb the costs of nuclear war in ways states cannot.