Q1: Short Answers: (56) 1.1) What is the main motivation behind passing parameters by reference to a function? 1.2) How can we create an array whose length/size can be specified on run time? Give small C++ code example. 1.3) Describe the circumstances in which explicit use of this pointer is involved. 1.4) Why static automatic variables are used? 1.5) How can we access a private static data member, when no objects of the class exist? 1.6) How we can create a const object that has some specific data member item that needs to be modified despite the objects constness?