Arrange the below mentioned Urban classification in correct sequence (small to large).

A. City
B. Conurbation
C. Megalopolis
D. Million City

Choose the correct answer from the options given below:

A, D, B, C

The correct answer is Option (2) → A, D, B, C

The correct sequence of the urban classification from small to large is as follows:

A. City (smaller urban area)

D. Million City (a city with a population of one million or more)

B. Conurbation (an extended urban area formed by the growing together of several formerly separate, smaller cities or towns).

C. Megalopolis (a region or area that comprises multiple interconnected metropolitan areas or cities)