The Triangle Trade brought labor for a <em>very</em> cheap price, much much cheaper than indentured servants. They also began to use the triangle trade instead of enslaving the locals because the natives knew their way around the land and could run away easily.
The right choice is B. Parliament passed new taxes on the colonies without granting them representation.
They often aligned themselves with other developing nations to create a bloc. They have the power of one super power nation, but they are still able to speak their countries opinions. Either wise, they would be completed over powered.