Sorry I just need more points
It's not the first one because it's a primary not a secondary. So I'd say its C since it's often referred as a bull market.
True, post WW2 Japans economy boomed and especially in that time they became a world economic power and today they are still one of the strongest economies in Asia.
The armistice is however only a cease-fire between military forces, rather than an agreement between governments. No peace treaty was signed which means that the Korean War has not officially ended. The armistice established the Military Demarcation Line (MDL) and the DMZ.
Probably better defense systems or training people in the army.