I thnk it is age hope it helps
I would say the answer would be D)
because back then in the 20’s it was politically correct and acceptable to target particular ethnic groups from being able to migrate to your country.
All of the other immigration acts have occurred within the last 50 years or so when it would NOT be acceptable to enforce this kind of exclusion.
hope this helps!
Answer:Herbivores
Why?Well,herbivores only eat plants.If all producers went away,herbivores would die.
