Which one of the following is not the guiding principle of World Bank regarding its lending operation ?

Under Article III, Section 5(a) of the IBRD (World Bank) Articles of Agreement, the World Bank is strictly prohibited from tying its loans—meaning it shall impose no conditions that the proceeds of a loan must be spent in the territories of any particular member country. Therefore, 'The bank does expect the borrowing country to spend the loan in a particular country' is not a guiding principle of World Bank lending.