Correct Option: C

Tertiary sector of the Indian economy contributes largest to the GNP. During last decade tertiary sector has shown remarkable expansion. The economy is divided into three sectors on the basis of activities-primary, secondary and tertiary. Primary sector is involved into agriculture, secondary sector is involved into manufacturing, mining, construction while tertiary sector is involved into trade, transport, communication, banking & other services. In the last decade, India has expanded maximum in providing services like IT, telecommunication, healthcare, tourism which is contributing around 60% to GDP.