Which of the following statements is not true?
a. medieval towns were built near riverbends or other sources of water
c. medieval towns were often built on a hill or other high area.
b. medieval towns were usually built with a wall around them.
d. medieval towns were built with single-story buildings close together.

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countires in an effort to build a stronger team. after learning this, the secondteam begins its own recruitment campaign to find better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rivals most recent addition. which idea from the cold war is most similar to this scenario