The theory is called mercantilism.
Answer:
It's Demand
Two goods are substitutes if one can replace the other in consumption. If a substitute good becomes cheaper this shifts the demand curve in.
Answer:
b) it was a failed plan to unite the american colonies
Explanation:
Benjamin Franklin served in the Second Continental Congress and helped draft the Declaration of Independence in 1776. Benjamin also negotiated the 1783 Treaty of Paris that ended the Revolutionary war.