Concept:
Air transport represents the fastest mode of intercontinental and domestic passenger and high-value cargo transit.
Major global metropolitan centers act as primary aviation nodes hosting world-renowned international airports that connect diverse hemispheric air corridors.
Step 1: Identifying Airport Locations and Countries:
1. Montreal (A): Montreal (home to Pierre Elliott Trudeau International Airport and the headquarters of the International Civil Aviation Organization - ICAO) is a major metropolis in Canada. Thus, A matches with III.
2. Madrid (B): Madrid (served by Adolfo Suárez Madrid-Barajas Airport) is the historic capital and largest city of Spain. Thus, B matches with IV.
3. Bangkok (C): Bangkok (served by Suvarnabhumi and Don Mueang International Airports) is the capital city and primary aviation hub of Thailand. Thus, C matches with I.
4. Perth (D): Perth (served by Perth Airport) is the major commercial hub of Western Australia along the Indian Ocean coast. Thus, D matches with II.
Step 2: Assembling the Matching Sequence:
The matching alignment is:
A $\rightarrow$ III, B $\rightarrow$ IV, C $\rightarrow$ I, D $\rightarrow$ II.
This aligns with Option (D).
Final Answer:
Hence, the correct option is A-III, B-IV, C-I, D-II.