Extreme old age when a man behaves like a fool

Options

A. A: Imbecility
B. B: Senility
C. C: Dotage
D. D: Superannuation

Answer

D

Explanation

The sentence implies that there is a special focus on public transport signs, maps and information signs at historic sites, as part of a drive to improve the experience of foreign tourists in the South Korean capital. ‘Particular’ meaning ‘especially great or intense’ is the apt word for the blank. Hence, option D is the correct answer. Other words do not produce the required meaning to the sentence.