Final answer:
The main benefit of a front wheel drive configuration with all drive system components up front is the increase in interior space and vehicle efficiency.
Step-by-step explanation:
The primary advantage of having all major drive system components located at the front of the front wheel drive configuration is C) Increased interior space and efficiency. This layout allows for the elimination of the driveshaft and rear differential, which in turn frees up space along the length of the vehicle's cabin. It also often results in a more straightforward and thus more efficient transmission of power from the engine to the wheels.