The correct options are
A British Government went to war with the Ottoman Empire.
B The British supported the cause of the Balkan nations in the Balkan Wars.
The British Government went to war with the Ottoman Empire in 1914, during the First World War and were trying to reduce the powers of the Caliph of the Ottoman Empire. They also supported the cause of the Balkan nations in the Balkan Wars of 1912-1913. These events upset the Muslims, they realised that allying themselves with the British, who were acting against Muslim interests worldwide, was no longer a viable option.