The answer is A.
Federal Laws that are against the constitution are not valid. Judges determine which laws are unconstitutional in the process of Judicial Review.
The correct answer is "landing a man on the moon." Before the US landed on the moon, the Soviet Union beat them in several different advances including having the first satellite to be launched into space. This satellite was known as Sputnik. However, the US was not willing to be second best to the Soviet Union
Read this excerpt from a summary of events in Srebrenica. "Zina Hasanovic is one of the lucky ones - she knows what happened to her husband, Haris. As Serbian bullets raced through a group of tightly-packed Muslim prisoners, Haris, mortally wounded, fell on top of his first cousin and best friend, Mevludin Oric. Mevludin lay on the ground, covered in blood and for hours pretended to be dead. He managed to escape to tell Zina of her husband's fate. Why is Zina Hasanovic referred to as "one of the lucky ones"?
most people never learned the fate of their loved ones