The correct answer is A) George III.
George III became the king of England toward the end of the French and Indian War in 1760. He became the king of Britain after the death of George II.
The French and Indian War that started in 1754, became an international conflict in 1756 when it became the "Seven Years War," in which European countries such as Prussia and Spain entered the armed conflict in the European scene. George III was already King at the end of this conflict in 1763. George III was also the British King during the Revolutionary War in which the Continental Army -led by George Washington- defeated the English Army and became an independent nation.