The meiji restoration abolished feudalism and established after otto von bismarck's germany.

constitution
cabinet
military
transportation system
economic system

it is not just a. constitution it is also b. cabinet and c. military

Constitution, Cabinet and Army  is the correct answer.

Explanation:

The restoration of imperial rule over the Empire of Japan under Emperor Meiji is known as Meiji Restoration. It took place in 1868.  Although there were emperors before the Meiji restoration, they were powerless. Meiji restoration  restored the practical powers of Japanese emperor and the goals of the new government were expresses in the charter oath. The restored constitutional monarchy was inspired from the Persian  model of government  in which the Emperor was active ruler and had control over diplomacy and foreign policy. He shared powers with the Imperial diet.

Imperial Japanese Army was established in 1878 and was similar to Prussian General Staff. This office was equal to ministry of War in Japan.

the answer is true sir