(a) With regard to the Auditor-General’s reports for the (i) 2011-12, (ii) 2012-13 and (iii) 2013-14 financial years, why has the Auditor-General’s opinion regressed for each of the following entities (aa) the SA National Roads Agency Limited (Sanral), (bb) the SA Civil Aviation Authority (SACAA), (cc) the Road Traffic Management Corporation (RTMC), and (dd) Road Traffic Infringement Agency (RTIA) and (b) what is being done to change this in respect of each entity?