Which building is widely considered the first skyscraper?

Here is the question :

WHICH BUILDING IS WIDELY CONSIDERED THE FIRST SKYSCRAPER?

Here is the option for the question :

• Sears Tower, Chicago
• Millbank Tower, London
• Home Insurance Building, Chicago
• Flatiron Building, New York

The Answer:

And, the answer for the the question is :

Explanation:

[STC008397]. In the years following the Great Chicago Fire of 1871, when the city was being rebuilt, architects in the city began to depend on materials other than wood, specifically steel, iron, and stone. The Home Insurance Building, which broke a record for its height and featured a steel frame, was designed by William LeBaron Jenney and stood a total of 10 stories tall. It was the first building of its kind in the globe, and it stood until 1931, when it was replaced by the Field Building.