Final answer:
Option A.
Tyler and Longview, cities in Texas, share a common major industry in Oil and Gas, reflecting the state's historical association with this sector despite its diversified economy.
Step-by-step explanation:
The major industry that Tyler and Longview have in common is Oil and Gas. These cities are located in Texas, a state which has a historical association with the oil and natural gas industry.
Although the economy of Texas has diversified into areas such as high-tech manufacturing, health care, and information technology, oil and gas remain significant industries in many areas of the state.
For instance, the city of Houston is famous for the space industry, particularly because of the presence of the NASA Lyndon B. Johnson Space Center.
Nonetheless, Tyler and Longview are part of the East Texas region known for its rich oil fields and contribution to the energy sector.
Despite the presence of other industries, the historical impact and continued relevance of oil and gas extraction and processing place them as the common major industries for both cities.
It is important to note that these cities might also be involved in other sectors, yet the legacy of oil and natural gas is deeply entrenched in their local economies.
Please mention the correct option in the final answer: A) Oil and Gas.