What was the original name of the command now known as USCENTCOM, formed due to the "Carter Doctrine"?

The original name of the command now known as United States Central Command (USCENTCOM) was indeed the Rapid Deployment Joint Task Force (RDJTF). This command was established in response to the geopolitical changes and threats in the Persian Gulf region during the late 1970s, particularly following the Iranian Revolution and the Soviet invasion of Afghanistan. The "Carter Doctrine," articulated by President Jimmy Carter in 1980, emphasized that the U.S. would use military force if necessary to protect its national interests in the Gulf, particularly regarding the access to oil.

The formation of the RDJTF was a direct implementation of this doctrine, aimed at ensuring a quick military response capability in case of crises in the region. The RDJTF later evolved into USCENTCOM, which solidified its role in overseeing military operations in the Central Command area of responsibility, which includes the Middle East and parts of North Africa.

In contrast, the other choices either represent unrelated entities or do not reflect the evolution of the command structure as it pertains to the initial response to the Carter Doctrine.