In object-oriented programming paradigm, the focus is on rather than An object has determined by its data fields and their values, and determined by its functions. are the only functions const objects can call explicitly. They are needed for , so that the data fields of the const objects can be accessed. const objects are often used as of non-member functions, in the of which the objects are not modified. Which of the following array declarations is NOT valid? Which of the following array declarations is NOT valid? Select one: a. int a1[0]; b. int a1] =0; c. int a1[1]=1; d. int a1[4] ={3,2,1}; e. int a1[100] ={1}; f. int a1[12] = fi; In the Rectangle class, we wish to set the default values of width to 10 and height to 20 . Which of the following is NOT a valid no-arg constructor for the Rectangle class? Select one or more: a. Rectangle(width =10, height =20); b. Rectangle0\{width =10; height =20;} c. Rectangle0: width(10), height(20) 4 d. Rectangle(double width =10, double height =20 ); Match the output you would get from the following code snippets: string s1("Welcome to LSBU SoE!"); s1.append(" EEE division", 0, 3); cout