Which action replaces the question mark on this cause-and-effect diagram?
f. implements an embargo against japan
g. sends ground troops to fight the chinese
h. bans the sale of weapons to china
j. appeases japanese demands for new territory

F. Implements an embargo against Japan.

Explanation: The United States, Britain, China, and the Dutch embargoed resources in an effort to discourage Japanese militarism, these nations and others stopped selling iron ore, steel and oil to Japan, denying it the raw materials needed to continue its activities in China and French Indochina. In Japan, the government and nationalists viewed these embargoes as acts of aggression; imported oil made up about 80% of domestic consumption, without which Japan's economy, let alone its military, would grind to a halt.