The assassination of Franz Ferdinand<span> by a Serbian Gavrilo Princip is the event that started World War 1. Ferdinand's wife Sophie was also killed in the attack.</span>
Dr. Samuel Mudd was convicted as a co-conspirator of Booth in President Lincolns assassination and, for aiding and abetting Booth in his attempt to escape from the federal authorities. He had a conspiracy crime and was convicted and sentenced to life imprisonment.
Stephen F. Austin played the role in the settlement of Texas because he started Texas colony on the lower Colorado river
I think the answer will be D?