Question

Originally a trading port, Hong-Kong, currently estimated to be fourth most densely-populated region in the world, turned into a dependent territory of Great Britain in 1842 and was transferred to China on July 1st, 1997.

• A. Originally a trading port, Hong-Kong, currently estimated to be fourth most densely-populated region in the world
• B. Hong-Kong, currently estimated to be fourth most densely-populated region in the world, was originally a trading port that
• C. Hong-Kong, currently estimated to be fourth in the list of the most densely-populated regions in the world, was originally a trading port that
• D. Hong-Kong, currently estimated to be fourth in the list of most densely-populated regions in the world, was originally a trading port that
• E. Originally a trading port estimated to be the fourth most densely-populated region in the world, Hong-Kong

Answer 1

The correct option is C Hong-Kong, currently estimated to be fourth in the list of the most densely-populated regions in the world, was originally a trading port that

The expression ‘the most’, a superlative degree is required to be identified by the definite article ‘the’. It has to be either 'the most or the fourth most' densely populated. Therefore, A, B and D can be dropped. Between C and E, E is totally off the mark in meaning as Metallicafan has pointed out; Hence C is the answer.