The correct options are
A Deciding where to build hospitals and schools.
B Deciding how to provide electricity to a village/ city.
C Deciding how to control the price of onions.
D Deciding how to run railway and postal services.
Every country needs a government to take important decisions about certain issues. For instance, the government decides where to build roads, schools, and hospitals. It also takes decisions about providing the people with essential needs like water and electricity. Controlling the price of commodities like onions and tomatoes according to its availability is also one of the responsibilities of the government. Services for the benefit of the whole population like railways and postal services are also important responsibilities of the government.