Final answer:
Industrialization in Japan after the Meiji Restoration initially focused on the Tokyo area, starting with the construction of a vital rail line to Yokohama completed by 1872.
Step-by-step explanation:
After the Meiji Restoration, industrialization in Japan began in several locations, with a key focus on the areas around the capital. The first goal was to build railroads to connect regions and assist in further industrial development. One of the earliest significant developments was the construction of a rail line between Tokyo and Yokohama, which began in 1870 and was completed by 1872, indicating that the initial phases of industrialization began around the Tokyo area.
As the seat of the newly restored imperial power and the capital city, Tokyo quickly became a focus for the nation's modernization efforts. Hence, the correct answer to the question 'After the Meiji Restoration, where did industrialization begin?' is a) Tokyo.