In what ways does the ultimatum address the assassination of Archduke Ferdinand at the hands of Siberian radicals?

At six o’clock in the evening on July 23, 1914, nearly one month after the assassination of Austrian Archduke Franz Ferdinand and his wife by a young Serbian nationalist in Sarajevo, Bosnia, Baron Giesl von Gieslingen, ambassador of the Austro-Hungarian Empire to Serbia, delivers an ultimatum to the Serbian foreign ministry.

According to the terms of the ultimatum delivered on July 23, the Serbian government would have to accept an Austro-Hungarian inquiry into the assassination, notwithstanding its claim that it was already conducting its own internal investigation. Serbia was also to suppress all anti-Austrian propaganda and to take steps to root out and eliminate terrorist organizations within its borders—one such organization, the Black Hand, was believed to have aided and abetted the archduke’s killer, Gavrilo Princip, and his cohorts, providing weapons and safe passage from Belgrade to Sarajevo. The Dual Monarchy demanded an answer to the note within 48 hours—by that time, however, anticipating Serbian defiance, Gieslingen had already packed his bags and prepared to leave the embassy.

Explanation:

the answer is false.