Read this excerpt from “Road to Valley Forge.”
For the American colonists, 1775 was a pivotal year. It was when years of angry resistance to British taxes and restrictions gave way to armed battle.


Using the context clue, which of the following is the best definition of pivotal as it is used here?

A) Turn to the side.
B) A turning point.
C) To turn away in retreat.
D) Turn the enemy around.