Public services are never better performed than when their reward comes in consequence of their being performed, and is proportioned to the diligence employed in performing them. What does the mean abs why does it matter

Which was the original difference between sunnis and shias? a. they disagreed on the content of the five pillars. b. they disagreed on the role of sharia in muslim society. c. they disagreed on the role of imams in the islamic religion. d. they disagreed on who should have succeeded muhammad.