Answer: B. Digmaang Sibil sa Spain
Step-by-step explanation:
Quite a number of factors led the way to the World War such as the German Anschluss with Austria and the withdrawal of Germany from the League of Nations which meant that the League could not call Germany to order as they engaged in increasingly imperialistic actions.
The Spanish Civil war on the other hand, did not lead to the World War even though Spain received a lot of weapons from future opponents in WW2, Nazi Germany and Russian Communists. Indeed Spain stayed neutral during the was as General Franco aimed to stabilize the country.