The correct answer is: E. Where central, state or local government holds more than 51% shares or is working as a subsidiary to a government company.
A government company is a company in which the central government, state government or local government holds more than 51% shares or is working as a subsidiary to a government company. Government companies are formed to carry out various functions of the government, such as providing essential services, promoting economic development, and generating revenue.
Option A is incorrect because it only considers the central government. Option B is incorrect because it only considers the state government. Option C is incorrect because it only considers the central and state governments together. Option D is incorrect because it only considers the central, state and local governments together.
Option E is the correct answer because it considers all three types of governments. It is also the most comprehensive definition of a government company.