Explanation:

3 only

The Carnatic Wars were a series of military conflicts in the middle of the 18th century in India's coastal Carnatic region, a dependency of Hyderabad State, India. Three Carnatic Wars were fought between 1744 and 1763.

Following are some of the main causes which were responsible for the failure of the French and the success of the British in India :

Commercial Superiority and Better Financial Position
The trade carried on by the English Company was far greater than the French Company. Between 1736 to 1756, the trade of British Company was four times than that of French company. The financial position of French further deteriorated with the third Carnatic war and by the close of this war, it was not able to pay even its troops.

Private Character of the English Company
British Company was a private enterprise and this created a spirit of self reliance. French Company was more or less a department of the Government. It completely depended on Government. The corruption was in vogue in French Government and the same reflected in company also.

Naval Supremacy of the East India Company
The British had naval supremacy and due to that they were able to send help whenever required. This naval supremacy helped them to cut link between French possessions in India and France.

Better English Naval Base
Bombay was British Naval base. French Naval Base was in Isle of France. Due to this French failed to take any speedy action during the Carnatic wars.

English Company was backed by English Government
The British East India Company though private in character, was backed by the British Government. Some directors of the East India Company were Members of Parliament who could exercise influence in Government.