In the following question, sentence given with blank is to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
He succeeded in proving his point with ______________ logic.
Government establishes NITI Aayog (National Institution for Transforming India) to replace Planning Commission. It will emerge as a "think-tank" that will provide Governments at the central and state levels with relevant strategic and technical advice across the spectrum of key elements of policy.