Which side the alleys or the central powers had more worldwide support?

Germany, Austria-Hungary, and Italy had been parties to a secret agreement, the Triple Alliance, from 1882 until World War I, but Italy entered the war in opposition to Germany and Austria-Hungary. The Ottoman Empire entered the war on the side of the Central Powers on October 29, 1914, as did Bulgaria on October 14, 1915.

Explanation:

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i need the answer too man

letter d is correct.