How Julius Caesar died?

Julius Caesar was assassinated by about 40 Roman senators on the "ides of March" (March 15) 44 BCE. Caesar's death resulted in a long series of civil wars that ended in the death of the Roman Republic and the birth of the Roman Empire. On March 15, 44 B.C.E., Julius Caesar was stabbed to death in Rome, Italy.

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.