The correct answer is D. Military leaders revolted hoping to establish as fascist government.
Explanation
The Spanish Civil War was a bellicose conflict that began on July 17, 1936, and ended on April 1, 1939. This war originated when the Republican Popular Front was the winner in the February 1936 elections, which represented a threat to the nationalists or “insurrectionist”, a group that was made up of the conservative and traditional sector of Spanish society, a large part of the Spanish military high command with fascist influence, a large section of the church and, ultimately, all those who were afraid that it would arise in Spain a revolution of the proletariat.
Between February and July 1936, the tension between the social forces increased much more, because the government was unable to maintain public order and political violence was almost daily. The extremist groups on the right, fought with those on the left determined to regain their power, and stablish a fascist government. This war lasted about three years, until the final victory of the nationalists on April 1, 1939. So, the correct answer is D. Military leaders revolted, hoping to establish as fascist government.