Why is Plessy versus Ferguson decision an important landmark in the civil rights movement even though Plessy was found guilty by the United States Supreme Court

Dis the answerhope this

  i think you forgot to put the options but if your reffering to this question then your answer will be "b"  a. add "to" to the base form to create an adjective.b. when the subject of a sentence is singular, add "–s" to the base form.c. add "–ed" to irregular base forms to form the past participle.d. do not use a base form with plural subjects