How did the advent of elevators influence the vertical growth of cities in the late 19th century?

How did the advent of elevators influence the vertical growth of cities in the late 19th century?

• A. Elevators were used only in freight handling, not for buildings.
• B. Elevators had no impact on building heights.
• C. Elevators delayed construction of taller buildings due to cost.
• D. Elevators made tall buildings practical, enabling skyscrapers and altering land use and skyline prominence.

Answer: (D)