To ask the Scottish Government, further to the answer to question S5W-14366 by Derek Mackay on 20 February 2018, whether it has requested that any resolution with UK Government officials regarding the complex interaction between Scottish income tax policy and entitlement to universal credit should take the form of (a) a disregard of the net benefit of the starter rate of income tax for the calculation of universal credit or (b) a supplementary payment of universal credit.