Answer:
B. gain commercial/economic advantages in China
Explanation:
One of the major reasons European nations established spheres of influence in China in the 19th century was to gain commercial and economic advantage in China.
They were aware that China was a key nation with numerous potential so the European nations began to extend their tentacles of influence to China to tap into those potentials.
An explosive possibility or a defensive feeling or action.
1The power of the Executive Branch is vested in thePresident of the United States, who also acts as head of state and Commander-in-Chief of the armed forces. ... Fifteen executive departments — each led by an appointed member of the President's Cabinet — carry out the day-to-day administration of the federal government