2. In C++ Write short statements for each of the following: (Be to the point, you do not need to write the entire code). (4 x 5 = 20 points) a) Declare and initialize a variable (choose your own variable name) to store your favorite flower's name. b) Given an input file named: xydata.txt Write a suitable statement to open this file in C++. c) Given four variables (all floats) a, b, c, d Write a statement that will compute the average of the four variables and store in the variable average. d) Given the following mathematical expression for payment: PR payment = 1-(1 + R)-Y Where P, R, N are inputs, and assumed they are declared and their values are given. Write this formula in C++ suitably. e) Declare a string variable textbook to store the name of any text book. Then write an input statement to get the name of the text book (remember the text book name may not be one word long)