What was the major innovative technique that allowed henry ford to produce an automobile that could be manufactured and sold at a reasonable cost? he pioneered the use of aluminum frame designs. he used the assembly line production process. he developed an automobile that ran on less fuel. he invented the inflatable tire for the automobile.

The major innovative technique that allowed Henry Ford to produce an automobile that could be manufactured and sold at a reasonable cost was the assembly line production process. From this new production system, called Fordism (term coined by A. Gramsci), serial production is developed. In this process each of the parts is added as the product progresses along the work station, until the final assembly is achieved. With this system it was necessary to have many workers using machines and developing repetitive tasks.  So it was possible to control the productive times of the worker, now in the hands of the employer (determined by the speed of the assembly tape).

b. sec, foreign relations

i think the answer is a and i hope this ; ))