Options: (a). yes. (b). no.
Does "In Greek-inhabited territory itself, Greeks came to play a leading role in the Ottoman Empire, due in part to the fact that the central hub of the empire, politically, culturally, and socially, was based on Western Thrace and Greek Macedonia, both in Northern Greece, and of course was centred on the mainly Greek-populated, former Byzantine capital, Constantinople." correctly answer the question of What type of position did Greeks come to hold in the Ottoman Empire ?
(a).