Which one of the following pairs is correctly matched?

(a) Automobile industry	Los Angeles
(b) Shipbuilding industry	Lusaka
(c) Aircraft industry	Florence
(d) Iron and Steel industry	Pittsburgh

The correct answer is option 4.

Important Points

• Iron and steel industry -
  • ​Pittsburgh is an important steel and iron city in the United States of America. The processing of iron began in Pittsburgh in mid 19th century. Hence the option 4 is correct.
  • The  Pittsburgh district is the capital of the world of iron and steel.
  • Comprising only a little more than Allegheny country, this district produces annually more than one-fourth of the nation's steel.
• Automobile industry -
  • ​The automobile industry was first invented in Germany and France in the late 1800s. Hence the option 1 is incorrect.
• ​Lusaka is famous for its centrality in the manufacturing and banking industry. Hence the option 2 is incorrect.
• Florence is mainly famous for its textile industry. Hence the option 3 is incorrect.

Additional Information

• Southern California, the auto industry in Los Angeles involves everything except assembling passenger cars, which ended in 1992 with the closure of a GM's plant in Van Nuys.
• Los Angeles is a major centre of automotive design and marketing for firms from all around the world.
•  Shipbuilding industry
  • Shipbuilding is the construction of ships and other floating vessels.
  • Shipbuilders, also called shipwrights, follow a specialized occupation that traces its roots to before recorded history.
•  Aircraft industry
  • Glenn Curtiss of New York began selling his own aircraft in 1909, prompting many American aircraft hobbyists to turn entrepreneurial.
  • Europeans took a clear early lead in aircraft manufacture.