In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.

Nawab Mir Osman Ali Khan was the last ruler of Hyderabad, the largest princely state in British India. He ascended the throne (1)______ the age of 25 and ruled Hyderabad for 37 years. He (2)______ on the cover of Time magazine as the (3)______ person at the time. He was the 5th richest man in (4)______ history of mankind and the richest Indian who ever lived. He was a (5)______ ruler who encouraged education, science and development.