The correct answer is A the first one.
Shakespeare played the piano
Justinian was one of the most important rulers from the over 1000 years of rule of the Byzantine Empire. He created many codes, or laws, to unify the empire. He spread religion throughout the Byzantines. Expanding the empire was also a big achievement made by him. The most important architectural monument of the Byzantines, the Hagia Sophia, was also created at this time.
(Sorry, I'm a World History geek, I took AP World History freshman year ;))
The major role that political parties play during the election process is: Encouraging citizens to vote.
Using one or the other mean, these parties convince people to cast their vote. They advertise for voting. They run door-to-door campaigns. They complete some welfare projects of localities only for one purpose that people cast the vote to their parties.