The available options are:
A. A diamond mine is opened in the city.
B. A new mall is opened in the downtown area.
C. A new transit system is built within the city.
D. A new high-speed rail link connecting the east and west of the country passes through the city.
E. A new university opens in the city.
Answer:
A new high-speed rail link connecting the east and west of the country passes through the city.
Step-by-step explanation:
Given that situation of a city is something that has to do about the city's features, such as man-made and natural features including road networks, construction of buildings, water bodies, etc.
Hence, what might alter the situation of a city is "A new high-speed rail link connecting the east and west of the country passes through the city."
This is because the city's infrastructural development and outlook will be quickly and greatly influenced and affected positively.