Final answer:
The correct answer is option 1. Henry Ford is known for creating the Model T and perfecting the assembly line for mass production. His innovations made automobiles affordable and transformed industrial manufacturing.
Step-by-step explanation:
Henry Ford and the Assembly Line
Henry Ford is the inventor associated with the Model T automobile and the mass production system using the assembly line technique. Although he didn't invent the automobile or the assembly line, Ford was instrumental in refining and combining these innovations to massively increase production efficiency, decreasing costs, and making cars affordable for the general public.
His use of vanadium steel alloy and continuous process improvements allowed the Model T's price to drop from $850 in 1908 to $300 in 1924. Ford's integration of assembly line methods into the car manufacturing process began in 1913, resulting in exponentially increased production rates and the democratization of car ownership. The correct answer to the question is option 1) Henry Ford. As for the invention of the radio, it is attributed to c) Guglielmo Marconi.