The first landing of the Apollo 11 spacecraft on the moon is a signal event in history. What does signal mean in this sentence

original oratory is a competitive event in the national speech and debate association, stoa usa, national catholic forensic league, and other high school forensic competitions in which competitors deliver an original speech on a subject of their choosing, though the speech must be factual.racial discrimination refers to discrimination against individuals on the basis of their race. policies of racial segregation may formalize it, but it is also often exerted without being legalized and also it means facing injustice.

the answer is b ik this because i ahd this in a quick quiz

i don’t know your in college god damit

do your own work !