D, combination of all the them
Explanation:
Answer: Sher Shah built an excellent network of roads to improve the communication system. He built four major roads among which the Grand Trunk road was the longest and the most important. It connected Sonargaon in the east to Peshawar in the north-west.
It is a productive farming area
Answer:
In developing countries children are needed as a labour force and to provide care for their parents in old age.
In these countries, fertility rates are higher due to the lack of access to contraceptives and generally lower levels of female education.
High fertility can impose costly burdens on developing nations.
In rural areas children are needed as labour on farms. In urban areas they are needed to work in the informal sector to earn money for their families.
Women have a large number of children as there is a high level of infant mortality
The United States uses Fahrenheit
