Final answer:
The Selec-Trac system is exclusively matched to an automatic transmission in the Jeep Wrangler.
Step-by-step explanation:
The Jeep Wrangler 4WD system that is matched exclusively to an automatic transmission is the Selec-Trac system. This system is available only with an automatic transmission and provides full-time four-wheel drive capability.
The Command-Trac and Quadra-Trac systems are also available for the Jeep Wrangler but are not exclusive to automatic transmissions. They can be matched with both automatic and manual transmissions.
The Rock-Trac system, on the other hand, is a specialty 4WD system designed for off-roading and is typically found in the Jeep Wrangler Rubicon models. It can be matched with both automatic and manual transmissions.