When Germany attacked France through Belgium. within hours, Britain declared war on Germany
What’s the article about tho?
First off, the controversy of this had led to an imbalance in congress among the number of free states and slave states. So this rules out our first option. Due to it not being all of the above, that's our fourth answer ruled out as well. The Webster speech did not happen for 10 more years so it is very unlikely that this is what led to that speech. Even without the process of elimination, it would be B because the Missouri Compromise admitted Missouri as a slave state and Maine as a free state in order to preserve the balance of power in congress. Also, Henry Clay (the Great Compromiser) drafted this.
The Space Race Begins. It is 1957 and the U.S. and the Soviet Union are locked into the Cold War. The Soviet Union has just launched the world's first satellite, Sputnik. Fearful of Soviet military control of space, the Americans quickly ready a rocket.
That's Rationalization my friend.
Hope this helps :D