PLEASE HELP Which is a unique feature of idioms?

They are all outdated and indistinguishable.
They are confusing and complex.
They are particular to distinct times and peoples.
They are distracting to contemporary readers.

there's only 5: 00 to complete answer can i comment

first person

explanation:

in night, why are wiesel and his father evacuated from the auschwitz concentration camp? a massive escape makes the nazis question the security of auschwitz. they are assigned to work as laborers in a factory at another camp, buna. hitler has ordered that all remaining jews be relocated within german borders. the german army needs the camp guards to go to the battle front for a last-chance defense.