In which statement is the transition used correctly?
A. Gold in California ignited interest in a railroad to reach the West. As a result, Americans disagreed on where to build the railroad.
B. Gold in California ignited interest in a railroad to reach the West. However, Americans disagreed on where to build the railroad.
C. Gold in California ignited interest in a railroad to reach the West. Therefore, Americans disagreed on where to build the railroad.
D. Gold in California ignited interest in a railroad to reach the West. Before this, Americans disagreed on where to build the railroad.