QUESTION 9 An input stream may enter the fail state when O a user takes to long to enter data O the program expected upper case letters, but lower case letters were entered O invalid data was entered O there are spaces in the input for a string variable QUESTION 10 Suppose that infile is an ifstream variable and employee.dat is a file that contains employees' information. Write the C++ statement that opens this file using the variable infile. QUESTION 11 Suppose that infile is an ifstream variable and it is associated with the file that contains the following data: 27306 savings 7503.55. Write the C++ statement that reads and stores the first input in the int variable acctNumber