01) Mark the following statements as true or false. a. An output stream is a sequence of characters from a computer to an output device. (1) b. To use cin and cout in a program, the program must include the header file iostream. (1, 2) Suppose pay is a variable of type double. The statement cin >> pay, requires the input of a decimal number. (2) d. The statement cin >> length; and length >> cin; are equivalent. (2) When the statement cin >> num1 >> num2; executes, then after inputting a number into the variable num1 the program skips all trailing whitespace characters. (2) To use the predefined function sqrt in a program, the program must include the header file cmath. (3) 9. The statement cin.get (ch), inputs the next nonwhitespace character into the variable ch. (4) h. When the input stream enters the fail state, the program terminates with an error message. (5) 1. To use the manipulators fixed and showpoint, the program does not require the inclusion of the header file iomanip. (6) 1. The statement cin >> right; sets the input of only the next vari- able right-justified. (7) k. To input data from a file, the program must include the header file Estream