Answer:
what exactly are you asking? i would love to help, but i need more detail plz.
Explanation:
Movements for civil rights in the United States include noted legislation and organized efforts to abolish public and private acts of racial discrimination against African Americans and other disadvantaged groups between 1954 and 1968, particularly in the southern United States.
Your answer is B I’m really sure for that!
B. Ecosystem because there abiotic and biotic things.