Which is not the main function of specialised financial institutions established by the Central and State governments?

(A) To grant loans for a longer period to industrial establishment

(B) To help the establishment of business units that require small amount of funds and have short gestation period

(C) To provide support for the speedy development of the economy in general and backward regions in particular

(D) To offer specialized services operating in the areas of promotion, project assistance, technical assistance services and training and development of entrepreneurs