Correct Response: A. During the middle of the eighteenth century, the introduction of technological innovations such as the flying shuttle, the spinning jenny, the water frame, and printing machines transformed the British textile industry. By contrast, British manufacturers did not develop a quick and inexpensive process for producing steel (B) until the 1850s. In transportation (C), the most significant breakthrough was the emergence of railroads, which began in 1830 with the construction of Great Britain's first railway line. Advances in munitions production (D) also lagged well behind developments in textiles.