Which was not a result of the french and indian war (seven years' war)? :
a. france lost canada.
b. great britain incurred high war costs.
c. great britain gained louisiana.
d. great britain saw a need to tighten its administrative system.
e. great britain made a decision to reinvigorate the mercantile system.

C. Great Britain gained Louisiana

The result of the French and Indian War or the Seven Year's War includes France losing Canada and the Great Britain incurred debts due to high war costs. They also realized that they have to tighten their administrative system and reinforce the mercantile system. Great Britain gaining Louisiana was never part of the effects.