Please submit your concern

Explanation:

The author has not criticized executives of automobile companies and hence option 1 can be eliminated.
Option 2 is correct. The car that ford made did 18 miles an hour. Today, in London, cars still manage an average speed of 17+ miles per hour.
Option 3 goes against the idea expressed in the passage. Anthropological factors have tried to dampen the speed of change and not fostered innovation.
According to the author, innovation in jet engines has been more cosmetic and hence cannot be more than incremental (option 4).
Hence, the correct answer is option 2.

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