What major infrastructure change occurred in Texas's skyline?

The correct answer centers around the replacement of a skyscraper, a significant event in the ongoing evolution of Texas's skyline. This type of infrastructure change often reflects broader economic trends, urban planning decisions, and architectural advancements. When a skyscraper is replaced, it not only alters the aesthetic of the skyline but also indicates a shift in the use of space, possibly accommodating new technologies or more efficient designs that better serve the city's needs.

This replacement can also symbolize the city's growth and development, catering to an increasing population or changing economic conditions. It showcases the city's commitment to maintaining a modern and relevant urban environment, as cities continuously evolve to meet the demands of their residents while also appealing to businesses and tourism.

In contrast, while the introduction of a new tallest building might suggest growth, it lacks the specificity that replacement provides, which directly addresses change within the existing skyline. Landmark statues and public transport expansions contribute to cultural and infrastructural diversity but do not hold the same immediate visual impact on the skyline as the replacement of a major skyscraper.