The correct option is A Both A and R are true and R is the correct explanation of A.
Three Carnatic wars fought between the British, and the French helped the British to establish their supremacy in India. The French won the First Carnatic War. The Second and Third Carnatic wars were won by the British. The English Government firmly backed the British East India Company, and the French subordinated their commercial interests to their territorial ambitions. It worsened the financial conditions of the French Company and led to their fall in the Third Carnatic War.